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Symptoms » Blurred vision » Glossary
 

Glossary for Blurred vision

Medical terms related to Blurred vision or mentioned in this section include:

  • 18p minus syndrome: A rare chromosomal disorder where a portion of chromosome 18 is missing which is characterized by mental and growth deficiencies, drooping upper eyelid and prominent ears. The type and severity of symptoms is determined by the amount of genetic material that is missing.
  • 2q deletion: A rare chromosomal disorder where part of the long arm (q) of chromosome 2 is deleted resulting in various abnormalities which are determined by the size of the deleted portion.
  • 3 alpha methylglutaconicaciduria, type 3: A rare genetic condition where a gene mutation prevents the production of certain protein which leads to a build-up of an acid (3-methylglutaconic acid) which can have a negative impact on the body. The condition is characterized mainly by damage to the optic nerve.
  • Absent corpus callosum -- cataract -- immunodeficiency: A rare syndrome characterized by immunodeficiency, cleft lip or palate, cataract, reduced pigmentation and brain abnormalities.
  • Acanthamoeba infection: Infection with a microscopic, free-living ameba that is readily found in the environment - soil, air and water. Most people exposed to the ameba will not become infected but when infections do occur, they tend to affect the eyes, central nervous system or can cause widespread infection throughout the body.
  • Acanthamoeba infection of the eye: Infection by an amoebic organism called Acanthamoeba. Infection usually occurs when the amoeba enters through a break in the skin or through the nose. Infection can be localized or systemic where it can involve the central nervous system and cause potentially fatal meningoencephalitis. Infection of the eye can occur by cleaning contact lenses in contaminated water.
  • Acanthamoeba keratitis: Infection of the eye with a microscopic, free-living ameba (Acanthamoeba) that is readily found in the environment - soil, air and water. Infection most often occurs through exposure to contaminated water while wearing contact lenses e.g. swimming or showering in infected waters.
  • Acanthocytosis: A rare disorder where most of the red blood cells are abnormal with spiny projections due to lipid abnormalities. The blood abnormality is seen in conditions such as abetalipoproteinemia, severe liver disease and severe malnutrition. Symptoms and prognosis depend on the underlying disorder.
  • Accelerated hypertension: Accelerated hypertension is a condition characterized by a rapid increase in blood pressure. The condition is a medical emergency which can cause organ damage if not treated promptly.
  • Accidental Eye Injury: The accidental injury to an eye
  • Achard syndrome: An inherited connective tissue disorder characterized primarily by a short head, long, slender bones, recessed lower jaw and loose hand and foot joints.
  • Achromatopsia 3: A rare form of colorblindness which also involves myopia.
  • Achromatopsia with Myopia: A rare form of colorblindness which also involves myopia.
  • Acromegaly: An abnormal enlargement of the limbs due to increased secretion of growth hormone after the cessation of puberty
  • Acute Angle Closure Glaucoma: Primary angle closure is defined as an occludable drainage angle and features indicating that trabecular obstruction by the peripheral iris has occurred (ie, peripheral anterior synechiae, increased IOP, lens opacities, excessive trabecular pigmentation deposits).
  • Acute Posterior Multifocal Placoid Pigment Epitheliopathy: A acute acquired condition which is an inflammatory one affecting the retina of healthy young adults
  • Acute headache: Headache, or cephalgia, is defined as diffuse pain in various parts of the head, with the pain not confined to the area of distribution of a nerve.
  • Acute posterior multifocal placoid pigment: A rare eye disease where the central vision in one or both eyes is affected by inflammation or fluid build up in the retina. The retina lies at the back of the eye. Symptoms such as fever, headache and malaise often precede the eye symptoms. The cause of the condition is unknown but may have autoimmune origins.
  • Acute retinal necrosis syndrome: An acute infection of the eye usually caused by the chicken pox virus (varicella-zoster), herpes simplex or cytomegalovirus. One or both eyes may be involved.
  • Acute vitamin A toxicity: Acute ingestion of vitamin A can cause symptoms. Symptoms usually only last for a day or two.
  • Adams Nance syndrome: A rare genetic disorder characterized by rapid heartbeat, high blood pressure, small eyes and the presence of excess glycine in the urine.
  • Adolescent cataract and infertility syndrome: A rare syndrome characterized mainly by cataracts and infertility in male adolescents.
  • Adrenal hypertension: Adrenal hypertension is high blood pressure caused by adrenal gland problems. For example, an adrenal tumor can cause excessive production of aldosterone which in turn causes salt-retention and high blood pressure. Severity of symptoms varies depending on the underlying cause.
  • Adrenoleukodystrophy, autosomal, neonatal form: A rare inherited disorder involving the adrenal glands, testes and certain parts of the brain (white matter). It is a less severe form of leukodystrophy where an abnormality within the body cells prevents the metabolism of certain fats (long chain fatty acids).
  • Age-related macular degeneration: Deterioration of the central field of vision.
  • Aging: The medical conditions from getting older.
  • Air embolism: A condition where an air bubble enters the cardiovascular system (via injection, intravenous therapy, surgery or puncture wound) and obstructs the blood flow.
  • Akaba-Hayasaka syndrome: A very rare syndrome characterized mainly by a prominent forehead, cloudy corneas, low nasal bridge, underdeveloped chest and short limbs.
  • Albright's hereditary osteodystrophy: A rare genetic disorder where the body fails to recognize and respond to the parathyroid hormone. The parathyroid hormone is involved in controlling the blood levels of calcium and phosphate.
  • Alcohol intoxication: excess intake of alcohol can lead to serious consequences
  • Alcohol-induced hypertension: Alcohol-induced hypertension is high blood pressure caused by excessive drinking of alcohol.
  • Alpha-Mannosidosis: A rare condition which is characterized by a lysosomal storage defect.
  • Alport Syndrome: A rare hereditary disorder involving the progressive deterioration of parts of the kidney resulting in chronic kidney disease.
  • Alport syndrome with leukocyte inclusions and macrothrombocytopenia: A rare condition characterized by the presence of large blood platelets, kidney inflammation, deafness and abnormal leukocytes. End-stage kidney disease occurs in about a third of patients and tends to occur during the 3rd and 4th decades of life.
  • Alves Castelo dos Santos syndrome: A rare syndrome characterized by hair, eye, skin and spinal abnormalities.
  • Amaurosis Congenita of Leber, type 12: A rare inherited retinal disease (retinal dystrophy) that usually starts during the fetal stage. Vision impairment is usually apparent at birth or within months of birth. Type 12 is distinguished from the other forms of this condition by the genetic origin of the defect - chromosome 1q32.3.
  • Amaurosis Congenita of Leber, type 13: A rare inherited retinal disease (retinal dystrophy) that usually starts during the fetal stage. Vision impairment is obvious usually by the age of 4 years. Type 13 is distinguished from the other forms of this condition by the genetic origin of the defect - chromosome 14q23.3, RDH12 gene.
  • Amaurosis congenita of Leber: A rare genetic eye disorder characterized by blindness at birth or within years as well as other eye abnormalities.
  • Amaurosis congenita of Leber, type 6: A rare inherited retinal disease (retinal dystrophy) that usually starts during the fetal stage. Vision impairment is usually apparent at birth or within months of birth. Type 6 is distinguished from the other forms of this condition by the genetic origin of the defect - chromosome 14q11, RPGRIP1 gene.
  • Amaurosis congenita of Leber, type 7: A rare inherited retinal disease (retinal dystrophy) that usually starts during the fetal stage. Vision impairment is usually apparent at birth or within months of birth. Type 7 is distinguished from the other forms of this condition by the genetic origin of the defect - chromosome 19q13.3, CRX gene.
  • Amaurosis congenita of Leber, type 8: A rare inherited retinal disease (retinal dystrophy) that usually starts during the fetal stage. Vision impairment is usually apparent at birth or within months of birth. Type 8 is distinguished from the other forms of this condition by the genetic origin of the defect - chromosome 1q31-q32.1, CRB1 gene.
  • Amaurosis congenita of Leber, type 9: A rare inherited retinal disease (retinal dystrophy) that usually starts during the fetal stage. Vision impairment is usually apparent at birth or within months of birth. Type 9 is distinguished from the other forms of this condition by the genetic origin of the defect - chromosome 1p36, LCA9 gene.
  • Amaurosis fugax: A rare condition where a temporary blockage of blood flow to the retina causes vision loss in the affected eye until the blood flow returns.
  • Amphetamine abuse: Use of the stimulant drugs known as amphetamines or "speed"
  • Amphetamine-induced hypertension: Amphetamine-induced hypertension is high blood pressure caused by use of amphetamines. Patients with an existing history of hypertension may suffer further blood pressure increases while taking amphetamines and this can be serious. Severity of symptoms varies amongst patients depending on their susceptibility, underlying health and duration of amphetamine use.
  • Andogsky's syndrome: A condition characterized by chronic eczema-like skin lesions which develop during childhood and cataracts which develop in early adulthood. The main areas affected by the skin lesions are the neck, elbows and knees.
  • Anemia: Reduced red blood cells in the blood
  • Aniridia: A genetic disorder where part or all of the iris of one or both eyes is missing. The iris is the colored part of the eye. There are four forms of the disease: AN-1, AN-II, AN-III and AN-IV.
  • Aniridia -- absent patella: A rare genetic condition characterized by an abnormal or missing kneecap as well as the absence of the iris of the eye.
  • Aniridia -- mental retardation syndrome: A very rare syndrome characterized by mental retardation and absent irises.
  • Aniridia -- ptosis -- mental retardation -- obesity, familial: A rare familial disorder characterized by eye abnormalities, mental retardation and obesity.
  • Aniridia II: A genetic disorder where part or all of the iris of one or both eyes is missing. The iris is the colored part of the eye. There are four forms of the disease: AN-1, AN-II, AN-III and AN-IV. AN-II is often associated with other eye problems such as glaucoma and nystagmus.
  • Aniridia ptosis mental retardation obesity familial type: A rare familial disorder characterized by eye abnormalities, mental retardation and obesity.
  • Aniridia, type 2:
  • Anisometropia: This is where there is an inequality in refractive power of the two eyes
  • Anterior polar cataract 2: A rare, dominantly inherited type of cataract which is characterized by small opacities on the front surface of the eye lens. Vision is usually not affected and the cataract is not associated with any other abnormalities. Type 1 is caused by a genetic defect on chromosome 17p13.
  • Anterior segment mesenchymal dysgenesis: An eye disorder caused by a genetic anomaly. The degree of vision impairment various with the severity of the condition.
  • Anxiety-tension syndrome: Anxiety associated with physical symptoms such as tense muscles and fatigue.
  • Aphakia: Absence of the lens of the eye - often due to cataract treatment. Also called aphacia.
  • Arachnodactyly -- ataxia -- cataract -- aminoaciduria -- mental retardation: A rare syndrome characterized mainly by congenital cataracts, ataxia, mental retardation, abnormal amino acid metabolism and long, thin fingers.
  • Arizona Bark Scorpion poisoning: A bite from the Arizona Bark scorpion contains chemicals toxic to the nerve system and can cause serious, life-threatening symptoms.
  • Asthenopia: Asthenopia or eye strain refers to general eye symptoms such as vision blurring, eye pain, eye weakness, eye fatigue and headaches which can result from overuse of the eyes or uncorrected vision problems.
  • Astigmatism: A condition which is characterized by ametropia caused by differences in the curvature of the refractive surfaces of the eye
  • Ataxia, episodic -- vertigo -- tinnitus -- myokymia: A rare genetic disorder characterized by episodes of incoordination and unsteadiness as well as tinnitus and vertigo. Stress, exhaustion, sudden movements and exertion may trigger the episodes. It is caused by a defect on chromosome 1q42.
  • Autoimmune Lymphoproliferative Syndrome: An inherited autoimmune condition characterized by proliferation of lymphocytes and autoimmunity against the body's own blood cells resulting in premature death of certain blood cells.
  • Autoimmune eye diseases: Eye disease that is caused by an autoimmune disease
  • Autoimmune uveitis: Autoimmune inflammation of the eye's uvea.
  • Autonomic dysreflexia: Autonomic dysreflexia is a condition characterized by instability of the autonomic nervous system and often results in sudden high blood pressure.
  • Autosomal recessive nonsyndromic congenital nuclear cataract: A rare recessively inherited type of congenital cataract that is not associated with any other abnormality.
  • Balance symptoms: Problems with balance or vertigo
  • Bardet-Biedl syndrome, type 1: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 1 is caused by a defect in chromosome 11q13.
  • Bardet-Biedl syndrome, type 10: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 10 is caused by a defect in chromosome 12q.
  • Bardet-Biedl syndrome, type 11: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 11 is caused by a defect in chromosome 9q33.1.
  • Bardet-Biedl syndrome, type 12: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 12 is caused by a defect in chromosome 4q27.
  • Bardet-Biedl syndrome, type 2: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 2 is caused by a defect in chromosome 16q21.
  • Bardet-Biedl syndrome, type 3: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 3 is caused by a defect in chromosome 3p12-q13.
  • Bardet-Biedl syndrome, type 4: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 4 is caused by a defect in chromosome 15q22.3.
  • Bardet-Biedl syndrome, type 5: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 5 is caused by a defect in chromosome 2q31.
  • Bardet-Biedl syndrome, type 6: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 6 is caused by a defect in chromosome 20p12.
  • Bardet-Biedl syndrome, type 7: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 7 is caused by a defect in chromosome 4q27.
  • Bardet-Biedl syndrome, type 8: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 8 is caused by a defect in chromosome 14q32.11.
  • Bardet-Biedl syndrome, type 9: A rare genetic disorder characterized by mental retardation, obesity, polydactyly and retinal pigmentation as well as other abnormalities. Type 9 is caused by a defect in chromosome 7p14.
  • Basilar artery insufficiency syndrome: A range of symptoms caused by impaired blood flow through the basilar artery. The symptoms may come and go according to variation in blood flow through the basilar artery. The blood flow may be impaired by such things as thrombosis, narrowed artery and blood vessel spasms. Symptoms vary depending on the exact location and extent of the artery involvement as well as whether the onset is gradual or sudden.
  • Bassoe syndrome: A very rare syndrome characterized primarily by hypogonadism, cataracts during infancy and muscle weakness.
  • Best Vitelliform Macular Dystrophy: Vitelliform macular dystrophy is a rare inherited eye disorder that affects the retina and often results in progressive loss of central vision. The early-onset form of the condition is called Best Vitelliform Macular Dystrophy and usually appears during childhood. The severity of the symptoms of this form of the condition is quite variable. Peripheral and night vision are usually unaffected.
  • Bhaskar-Jagannathan syndrome: A very rare syndrome characterized primarily by long, thin fingers, amino acids in the urine, cataracts (during infancy), incoordination and delayed development.
  • Birdshot chorioretinopathy: A rare eye disorder where the eye has a number of light-colored specks around the optic disk due to an inflammation inside the eye.
  • Birth symptoms: Symptoms related to childbirth.
  • Blepharitis: A common eyelid inflammation
  • Blindness: Loss of sight in one or both eyes
  • Blue-ringed octopus poisoning: The blue-ringed octopus is found in shallow Australian ocean water and can deliver venomous, potentially fatal bite. The poison is present in the saliva of the octopus. The venom affects the neuromuscular system.
  • Blurred Vision in Both Eyes: Blurring of vision occurring in both eyes.
  • Blurred Vision in One Eye: Blurring of vision occurring in one eye only.
  • Blurred vision in children: Blurred vision in children refers to eyesight that is unclear, fuzzy, or indistinct in a child.
  • Borries syndrome: Localized brain inflammation without the production of pus.
  • Bosma-Henkin-Christiansen syndrome: A rare syndrome characterized mainly by a reduced sense of smell, an underdeveloped nose and hypogonadism.
  • Botulism food poisoning: Extremely dangerous food poisoning requiring medical attention, but not always recognized because of its non-abdominal symptoms.
  • Brachycephaly -- deafness -- cataract -- mental retardation: A very rare syndrome characterized mainly by a short head, deafness, cataracts and mental retardation.
  • Brachycephaly -- deafness -- cataract -- microstomia -- mental retardation: A very rare syndrome characterized mainly by a short head, deafness, cataracts and mental retardation.
  • Brachymesomelia-renal syndrome: A rare syndrome characterized by kidney abnormalities and forearm and lower leg deformity. The condition describes a single reported case.
  • Brachymetapody, anodontia, hypotrichosis, albinoidism: A rare syndrome characterized by short foot bones, total absence of teeth, reduced amount of hair and lack of skin pigmentation.
  • Brain Fag syndrome: A type of neurotic disorder that was first observed in white collar workers in Africa.
  • Brain symptoms: Symptoms affecting the brain
  • Brushfield-Wyatt syndrome: A rare syndrome characterized mainly by mental deficiency, weakness on one side of the body and large port-wine stains that cover about a third of the skin's total surface. This condition may be a variant of another condition called Sturge-Weber syndrome.
  • Bushmaster poisoning: The Bushmaster is a poisonous snake found in America.
  • CAMFAK syndrome: A rare syndrome characterized by cataracts, small head, failure to thrive and spinal curvature.
  • CCFDN: A rare, recessively inherited syndrome characterized by cataracts during infancy, unusual facial appearance and neuropathy.
  • Camurati-Engelmann Disease: A very rare genetic disease thickening of areas of bone causing pain, weakness and wasting. Usually affects the legs during childhood. Also called diaphyseal dysplasia.
  • Cardiomyopathy cataract hip spine disease: A rare genetic disorder characterized by heart muscle disease, cataracts and hip and spinal problems.
  • Cat Eye Syndrome: A rare chromosomal disorder involving abnormalities of chromosome 22 and characterized by coloboma of the iris, down-slanting palpebral fissures and anal atresia.
  • Cataract: A condition which is characterized by an opacity of the lens of the eye
  • Cataract -- Hypertrichosis -- Intellectual Deficit: A rare genetic disorder characterized mainly by excessive body hair (especially on the back, shoulders and sides of the face), cataracts and mental retardation.
  • Cataract -- aberrant oral frenula -- growth delay: A rare syndrome characterized by cataracts, growth problems and abnormal mouth tissue (frenulum).
  • Cataract -- ataxia -- deafness: A rare syndrome characterized by cataracts, ataxia and progressive deafness.
  • Cataract -- intellectual deficit -- anal atresia -- urinary defects: A very rare syndrome characterized mainly by cataracts, mental retardation and genitourinary tract abnormalities and absent anal opening.
  • Cataract Hutterite type: An inherited form of cataract that occurs in children and is not associated with any other abnormalities.
  • Cataract and cardiomyopathy: A rare syndrome characterized by the association of congenital cataracts, heart muscle disease, lactic acidosis and skeletal muscle disease. The disorder involves the abnormal storage of lipids and glycogen in the skeletal and heart muscles. The cataracts progress rapidly and require surgery. The severity of the disorder ranges from stillbirth to survival into the fourth decade.
  • Cataract and congenital ichthyosis: A rare syndrome characterized by the presence of cataracts and a dry, scaly skin condition (ichthyosis) at birth or soon after.
  • Cataract congenital dominant non nuclear: A dominantly inherited form of cataract which varied in size, pattern and location of the lens opacities.
  • Cataract dental syndrome: A very rare inherited condition mainly involving eye abnormalities but also various other physical abnormalities. The type and severity of symptoms is variable.
  • Cataract skeletal anomalies: A condition characterized by the association of cataracts and skeletal anomalies. Variable other symptoms may also be present.
  • Cataract, Zonular Pulverulent 1: A genetic form of congenital cataract inherited in an autosomal dominant manner. Diagnosis usually occurs in the first few years of life. Type 1 refers to the fact that this subtype is linked to a defect on chromosome 1q21.1.
  • Cataract, Zonular Pulverulent 3: A genetic form of congenital cataract inherited in an autosomal dominant manner. Diagnosis usually occurs in the first few years of life. Type 3 refers to the fact that this subtype is linked to a defect on chromosome 13q11.
  • Cataract, alopecia, sclerodactyly: A rare disorder characterized by cataracts, lack of hair and skin changes in the hands and feet.
  • Cataract, anterior polar, dominant: A rare, dominantly inherited type of cataract which is characterized by small opacities on the front surface of the eye lens. Vision is usually not affected and the cataract is not associated with any other abnormalities. Type 1 is caused by a genetic defect on chromosome 14q24-qter.
  • Cataract, autosomal recessive congenital 2: A rare, recessively inherited, genetic eye disorder involving congenital cataracts (cloudy eye lens).
  • Cataract, autosomal recessive congenital 3: A rare, recessively inherited, genetic eye disorder involving congenital cataracts (cloudy eye lens). Type 3 is distinguished by the origin of the genetic defect which is linked to the cataracts.
  • Cataract, congenital nuclear, autosomal recessive 1: A rare recessively inherited type of congenital cataract that is not associated with any other abnormality. Type 1 is caused by a mutation on chromosome 19q13.
  • Cataract, congenital nuclear, autosomal recessive 2: A rare recessively inherited type of congenital cataract that is not associated with any other abnormality. Type 2 is caused by a mutation in the beta-B3 crystallin gene on chromosome 22q11.2-q12.2.
  • Cataract, congenital, Volkmann type: A dominantly inherited form of cataract that was observed in a family named Volkmann. Cataract surgery was required in most cases within the first 20 years of life.
  • Cataract, congenital, autosomal dominant: A dominantly inherited form of cataract.
  • Cataract, congenital, with microcornea or slight microphthalmia: A rare genetic eye disorder characterized by congenital cataracts (cloudy eye lens) and slightly small eyes or small corneas.
  • Cataract, juvenile, with microcornea and glucosuria: A rare disorder characterized by the association of juvenile cataracts, small corneas and excessive glucose in the urine.
  • Cataract, microphthalmia and nystagmus: A rare genetic eye disorder characterized by congenital cataracts (cloudy eye lens), small eyes and rapid, involuntary eye movements.
  • Cataract, posterior polar, 1: An inherited form of cataract caused by a defect on chromosome 1pter-p36.1.
  • Cataract, posterior polar, 2: An inherited form of cataract caused by a defect in the CRYAB gene on chromosome 11q.
  • Cataract, zonular: A congenital cataract where the lens opacities occur around the nucleus but not within it.
  • Cataract-glaucoma: A rare syndrome characterized by congenital cataracts in both eyes as well as glaucoma which tends to occur between the ages of 10 and 40.
  • Cataract-microcornea syndrome: A rare disorder characterized mainly early onset cataracts, small corneas and myopia.
  • Cataracts: A condition which is characterized by opacities of the lens of the eyes
  • Cellulitis: inflammation of the subcutaneous fat
  • Cennamo-Gangemi syndrome: A rare syndrome characterized by small eyes, congenital cataracts and hydrocephalus (buildup of fluid in the brain).
  • Central serous chorioretinopathy: A rare eye disorder where fluid collects under the retina which affects vision. The condition usually resolves itself within 6 months though most people suffering lingering vision disturbances such as distortion, reduced sensitivity to contrast, impaired night vision and reduced color vision.
  • Cerebelloparenchymal autosomal recessive disorder 3: A rare, recessively inherited disorder characterized mainly by albinism, incoordination, low muscle tone and eye problems.
  • Cerebellum agenesis -- hydrocephaly: A rare brain disorder which manifests as reduced muscle tone, ataxia, cataracts and mental retardation.
  • Cerebro-oculo-dento-auriculo-skeletal syndrome: A very rare syndrome characterized by abnormalities of the brain, eyes, teeth, ears and skeleton.
  • Cervenka's syndrome: A rare syndrome characterized by joint and facial abnormalities as well as nearsightedness and degenerative eye problems.
  • Chalazion: Slow-growing swelling of the upper or lower eyelid usually caused by a blockage in the oil glands in the eyelid.
  • Chandler's syndrome: A very rare eye disorder characterized by progressive corneal dystrophy and glaucoma which result in loss of vision.
  • Chemical burns: burns causing protein coagulation
  • Chemical poisoning: Morbid condition caused by chemical.
  • Chemical poisoning -- 1,3-Butadiene: 1,3-Butadiene is a chemical used in crop fungicides, carpet backing, paper coating and foams. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- 1-Amino-2-propanol: 1-Amino-2-propanol is a chemical used mainly in the synthesis of various pharmaceuticals such as methadone and opioid. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- 2-Amino-2-methylpropanol: 2-Amino-2-methylpropanol is a chemical used mainly in industrial applications. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- 2-Hexanone: 2-Hexanone is a chemical used mainly in paints, solvents and coated fabrics. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Adiponitrile: Adiponitrile is a chemical used mainly in the production of hexamethylene diamine which in turn is used mainly to produce nylon. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Allyl Glycidyl Ether: Allyl Glycidyl Ether is a chemical used mainly in the production of epoxies, thermoplastics, polyester resins, adhesives and elastomers. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Allyl alcohol: Allyl alcohol is a chemical used mainly as a weed killers and as a material in the production of other chemical compounds. The chemical is readily absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Allyl chloride: Allyl chloride is a chemical used mainly in the manufacture of epichlorohydrin and glycerin but is also used in the production of products such as polyester, varnish plastic adhesive, insecticides, perfumes and pharmaceuticals. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Amidithion: Amidithion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Amiton: Amiton is a chemical once used as an insecticide and acaricide - it is no longer in use due to its nerve toxicity. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Athyl-Gusathion: Athyl-Gusathion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinfos-methyl: Azinfos-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinfosethyl: Azinfosethyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinophos-methyl: Azinophos-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinphos: Azinphos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinphos-ethyl: Azinphos-ethyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinphos-methyl: Azinphos-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azinphosmetile: Azinphosmetile is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Azothoate: Azothoate is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Benoxafos: Benoxafos is a chemical pesticide used as an acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Bromophos: Bromophos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Bromophos-ethyl: Bromophos-ethyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Cadusafos: Cadusafos is a chemical pesticide used as an insecticide and nematicide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Calcium Oxide: Calcium oxide is a chemical used mainly in sewage treatment, dry cement and in the manufacture of products such as aluminum, glass and steel. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Captan: Captan is a chemical used as a fungicide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical is considered to carry a low risk of poisoning through ingestion.
  • Chemical poisoning -- Carbaryl: Carbaryl is a carbamate pesticide used mainly as an insecticide and acaricide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Carbophenothion: Carbophenothion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Chlordane: Chlordane is a poison use to control termites - is banned in the US and many other countries due to its harmful effects. Ingestion and other exposures to the chemical can cause various symptoms. The chemical is readily absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chlorfenvinphos: Chlorfenvinphos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Chloroacetophenone: Chloroacetophenone is a chemical used mainly in tear gas for riot control purposes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chloromethane: Chloromethane is a chemical used mainly in the production of silicones as well as agricultural chemicals, butyl rubber and other products. Ingestion and other exposures to the chemical can cause various symptoms. The chemical is readily absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chloropyrifos: Chloropyrifos is a chemical pesticide used as an insecticide, nematicide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Chlorpyrifos: Chlorpyrifos is a chemical used mainly in as an insecticide. Ingestion and other exposures to the chemical can cause various symptoms. The chemical may be absorbed readily through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Chlorpyrifos methyl: Chlorpyrifos methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Coumaphos: Coumaphos is used as a pesticide. Ingestion and other exposures to the chemical can cause various symptoms. The chemical may be absorbed readily through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Cyanthoate: Cyanthoate is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Demeton: Demeton-S is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Demeton-O: Demeton-O is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Demeton-O-methyl: Demeton-O-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Demeton-S-methyl: Demeton-S-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Demeton-S-methylsulphon: Demeton-S-methylsulphon is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Demeton-methyl: Demeton-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Deoderant: Deoderants contain various chemicals which can cause serious symptoms if sufficient quantities are ingested. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Depilatories: Depilatories are used to remove hair from parts of the body. They contain various chemicals which can cause serious symptoms if sufficient quantities are ingested. The chemicals cause damage to the gastrointestinal lining and the damage may continue for weeks after the poison was ingested. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Dialifos: Dialifos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Diazinon: Diazinon is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Dichlorvos: Dichlorvos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Dicrotophos: Dicrotophos is a toxic insecticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Dimethoate: Dimethoate is a chemical pesticide used as an insecticide, nematicide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Dinitrophenol: Dinitrophenol is a chemical that has various applications: herbicide, pesticide, fungicide, acaricide, manufacture of dyes and wood preservative. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Dioxathion: Dioxathion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Disulfoton: Disulfoton is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Endothion: Endothion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Ethion: Ethion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Ethoate-methyl: Ethoate-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Ethoprophos: Ethoprophos is a chemical pesticide used as an insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Ethyl-guthion: Azinphos-ethyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Ethylamine: Ethylamine is a chemical used mainly in the manufacture of dyes, rayon, rocket propellant, as a fuel additive and in leather-tanning and cellulose treatment. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Ethylene Dichloride: Ethylene Dichloride is a chemical used mainly in fat solvents and as a fumigant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Ethylenediamine: Ethylenediamine is a chemical used mainly as a solvent in the manufacturing process for the production of things such as fungicides, waxes, gasoline additives and pharmaceuticals. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Etrimfos: Etrimfos is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Face Powder: Face powder contains various chemicals that can cause symptoms if ingested although this is rare. Eye and inhalation exposure can also cause symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Fenchlorphos: Fenchlorphos is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Fenitrothion: Fenitrothion is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Fensulfothion: Fensulfothion is a chemical pesticide used as an insecticide and nematicide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Fenthion: Fenthion is a chemical pesticide used as an insecticide and avicide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Fonophos: Fonophos is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Formothion: Formothion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Gasoline: Gasoline is a chemical used as a fuel for combustion engines. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Guthion (ethyl): Guthion (ethyl) is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Hair Bleach: Hair bleach contain chemicals which can cause serious symptoms if ingested. The chemicals in the hair bleach can continue to cause gastrointestinal damage for weeks after ingestion. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Hair Dye: Hair dyes contain chemicals which can cause serious symptoms if ingested. The chemicals in the hair dye can continue to cause damage for weeks after ingestion. Some dyes contain lead or mercury which can cause neurological problems even if low level exposure occurs over an extended period of time. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Helium: Helium is a chemical used mainly in helium balloons, neon signs and diving gas. The gas is sometimes misused as an inhalant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Heptenophos: Heptenophos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Hexachlorocyclopentadiene: Hexachlorocyclopentadiene is a chemical used mainly in the production of chlorinated pesticides, flame retardants, dyes and certain resins. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Hexane: Hexane is a chemical used mainly in the manufacture of products such as glue, paint, shoes and furniture. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Hydrogen Chloride: Hydrogen Chloride is a chemical used mainly in the manufacture of rubber and vinyl chloride . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Incense: Drinking liquid incense or inhaling incense fumes can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Iodofenphos: Iodofenphos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Jet Fuel-4: Jet Fuel-4 is an aviation turbine fuel used by the US military. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Jet Fuel-5: Jet Fuel-5 is an aviation turbine fuel used by the US military. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Malathion: Malathion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Mecarbam: Mecarbam is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Methacrifos: Methacrifos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Methamidophos: Methamidophos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Methane: Methane is a natural gas that can be used as a fuel and also has industrial uses. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Methidathion: Methidathion is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Methiocarb: Methiocarb is a toxic pesticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Methomyl: Methomyl is a carbamate pesticide used mainly as an insecticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Methyl Bromide: Methyl Bromide is a chemical used mainly in insecticides, fire extinguishers, wool degreasers and oil extraction. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Methyl parathion: Methyl parathion is a chemical used mainly as an insecticide for various crops. Ingestion and other exposures to the chemical can cause various symptoms. The chemical may be absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Metiltriazotion: Metiltriazotion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Mevinphos: Mevinphos is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Monocrotophos: Monocrotophos is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Morpholine: Morpholine is a chemical used in a variety of applications: rubber industry, corrosion inhibitor, pharmaceuticals, dyes, crop pesticides and as a solvent in various manufacturing processes. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- N-Methyl-2-Pyrrolidone: N-Methyl-2-Pyrrolidone is a chemical used mainly in paint strippers, wire coating processes, petroleum industry and in the microelectronics industry. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Nitrites: Nitrite is a chemical used in many applications: manufacture of dyes, fabric manufacture, corrosive inhibitors, photography and cyanide antidote kits. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Omethoate: Omethoate is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Oxydeprofos: Oxydeprofos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Oxydisulfoton: Oxydisulfoton is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Paraphenylenediamine: Paraphenylenediamine is a chemical used mainly in photographic developing solutions, hair dye, photocopying and printing ink, black rubber, grease, temporary tattoos and car cosmetics. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Parathion: Parathion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Parathion Methyl: Parathion Methyl is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Phenkapton: Phenkapton is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Phorate: Phorate is a chemical pesticide used as an insecticide, nematicide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Phosalone: Phosalone is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Phosdrin: Phosdrin is a toxic pesticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Phosmet: Phosmet is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Phosphamidon: Phosphamidon is a chemical pesticide used as an insecticide and nematicide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Phoxim: Phoxim is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Pirimiphos-methyl: Pirimiphos-methyl is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Primiphos methyl: Primiphos methyl is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Profenofos: Profenofos is a toxic pesticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Propoxur: Propoxur is a carbamate pesticide used mainly as an insecticide and acaricide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Prothidathion: Prothidathion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Prothoate: Prothoate is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Pyrimitate: Pyrimitate is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Quinalphos: Quinalphos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Quintiofos: Quintiofos is a chemical pesticide used as an acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Sodium Azide: Sodium Azide is a chemical used mainly in nematocides, herbicides, explosives detonators and in vehicle air bags. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Sophamide: Sophamide is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Sulfotep: Sulfotep is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Sulfur Trioxide: Sulfur Trioxide is a chemical used mainly in the production of sulfuric acid and explosives. Sulfur trioxide is also a significant air pollutant which can mix with moisture in the air to produce "acid rain". Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Terbufos: Terbufos is a chemical pesticide used as an insecticide and nematicide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Tetraethyl Pyrophosphate: Tetraethyl Pyrophosphate is a toxic pesticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Tetrahydrofuran: Tetrahydrofuran is a chemical used mainly as a plastic solvent and in the processing of varnish, ink, paint and glue. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Tetramethylammonium Hydroxide: Tetramethylammonium Hydroxide is a chemical used mainly in the production of a variety of electronic components. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Thiometon: Thiometon is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Titanium: Titanium is an element used mainly in alloys. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
  • Chemical poisoning -- Tolclofos methyl: Tolclofos methyl is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Triazophos: Triazophos is a chemical pesticide used as an insecticide, nematicide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Triazotion: Triazotion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Trifenfos: Trifenfos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemical poisoning -- Vamidothion: Vamidothion is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
  • Chemke-Oliver-Mallek syndrome: A very rare syndrome characterized mainly by eye and finger and toe abnormalities.
  • Chondrodysplasia Punctata, Rhizomelic type: A rare genetic disorder characterized by slow growth, mental deficiency, characteristic facial features and skeletal deformities particularly of the limbs, spine and pelvis.
  • Chondrodysplasia punctata: An inherited skeletal abnormality where bone calcifications near joints and other disorders result in growth retardation, short limbs, cataracts and an abnormal nose shape. Also called chondrodystrophia calcificans congenital or congenital stippled epiphyses.
  • Chondrodysplasia punctata, non rhizomelic type: A group of inherited disorder affecting the skeleton, skin, eyes and mental function. The disorders are characterized mainly by stippled epiphyses (abnormal calcification near joints) during infancy. The non-rhizomelic forms tend to be milder, with minimal or no upper limb shortening. The Joints in the ends of the arms and legs tend to be more affected. Some of the specific disorders in this group are Conradi-Hunermann disease, Happle's chondrodysplasia and brachytelephalagnic chondrodysplasia punctata. The range of symptoms and severity may vary between disorders.
  • Chondrodystrophia calcificans congenita: A rare genetic disorder characterized by growth deficiency, short limbs, large skin pores, sparse hair and other abnormalities.
  • Chondrodystrophia punctata, autosomal dominant: A rare genetic disorder characterized by growth deficiency, short limbs, large skin pores, sparse hair and other abnormalities.
  • Chorea, remitting with nystagmus and cataracts: A rare inherited disorder characterized by chorea and involuntary horizontal eye movements that start in infancy and improve or disappear by the age of 10. Cataracts were also present.
  • Chorioretinitis: Inflammation of the choroids and retina of the eye. It can be caused by various pathogens such as bacteria, viruses, fungus or protozoa. Other noninfectious diseases such as sarcoidosis can cause abnormal deposits in the eye which can also result in inflammation.
  • Choroiditis: Inflammation of the part of the eye called the choroid (layer behind the retina). Usually only one eye is affected.
  • Chromosome 1, 1p36 deletion syndrome: A rare chromosomal disorder where deletion of a portion of chromosome 1 causes various abnormalities such as heart problems, mental retardation, developmental delay, facial dysmorphism and short stature. The symptoms are variable depending on the exact location of chromosomal deletion.
  • Chromosome 10, Monosomy 10p:
  • Chromosome 10p deletion syndrome: A rare chromosomal disorder where there is a deletion of the short arm (p) of chromosome 10 resulting in variable abnormalities.
  • Chromosome 11, deletion 11p: A syndrome that is caused by the deletion of short arm (p) of chromosome 11. The type and severity of symptoms varies depending on the amount and exact location of the genetic material that is deleted.
  • Chromosome 12, Isochromosome 12p Mosaic: A very rare disorder genetic disorder involving abnormalities in chromosome 12. The severity of symptoms is variable and tends to include a wide range of defects and abnormalities.
  • Chromosome 12p tetrasomy syndrome: A rare chromosomal disorder where there are four copies of the short arm (p) of chromosome 12 rather than the normal two resulting in various abnormalities.
  • Chromosome 15q duplication syndrome: A rare chromosomal disorder involving an extra copy of genetic material from the long arm of chromosome 15. The type and severity of symptoms are determined by the amount and location of the duplicated genetic material.
  • Chromosome 15q, trisomy: A rare chromosomal disorder involving an extra copy of genetic material from the long arm of chromosome 15. The type and severity of symptoms are determined by the amount and location of the duplicated genetic material.
  • Chromosome 18, Monosomy 18p: A rare chromosomal disorder where a portion of chromosome 18 is missing which is characterized by mental and growth deficiencies, drooping upper eyelid and prominent ears. The type and severity of symptoms is determined by the amount of genetic material that is missing.
  • Chromosome 18p minus syndrome: A rare genetic disorder where a portion of the genetic material from the short arm of chromosome18 is missing. The symptoms or severity may vary somewhat between patients.
  • Chromosome 1q duplication syndrome: A rare chromosomal disorder involving duplication of the long arm (q) of chromosome 1 which results in various abnormalities depending on the size and location of the portion of duplicated genetic material.
  • Chromosome 1q21.1 Deletion Syndrome: A rare chromosomal disorder caused by the deletion of a portion of chromosome 1 at a specific location (1q21.1). The main symptoms were mental retardation and various physical anomalies. The manifestations in individuals is quite variable.
  • Chromosome 2, monosomy 2q: A rare chromosomal disorder where part of the long arm (q) of chromosome 2 is deleted resulting in various abnormalities which are determined by the size of the deleted portion.
  • Chromosome 2, monosomy 2q24: A genetic disorder characterized by the deletion of a portion of the long arm of chromosome 2.
  • Chromosome 21q, partial deletion: A rare chromosomal disorder where a portion of the long arm of chromosome 21 is deleted.
  • Chromosome 3/B translocation: A rare chromosomal disorder involving a translocation of genetic material of chromosome 3.
  • Chromosome 4 Ring: A rare chromosomal disorder where the ends of chromosome 4 have been deleted and the two broken ends have rejoined to form a ring shape resulting in a range of symptoms determined by the size and location of the genetic deletion.
  • Chromosome 4 ring syndrome: A rare chromosomal disorder where the ends of chromosome 4 have been deleted and the two broken ends have rejoined to form a ring shape resulting in a range of symptoms determined by the size and location of the genetic deletion.
  • Chromosome 6, monosomy 6q: A rare chromosomal disorder where a part of the long arm (q) of chromosome 6 is deleted resulting in various abnormalities depending on the location and length of missing genetic material.
  • Chromosome 6p partial duplication: A rare chromosomal disorder involving duplication of part of the short arm (p) of chromosome 6 resulting in various abnormalities depending on the amount and location of the duplicated genetic material.
  • Chromosome 6q deletion syndrome: A rare chromosomal disorder where a part of the long arm (q) of chromosome 6 is deleted resulting in various abnormalities depending on the location and length of missing genetic material.
  • Chromosome 8 trisomy syndrome: A rare chromosomal disorder where there are three copies of chromosome 8 rather than the normal two which results in various abnormalities.
  • Chromosome 8, trisomy: A rare chromosomal disorder where there are three copies of chromosome 8 rather than the normal two which results in various abnormalities. The type and severity of symptoms varies depending on the amount and exact location of the genetic material that is duplicated.
  • Chronic vitamin A toxicity: Chronic excessive ingestion of vitamin A can cause symptoms.
  • Chylomicron retention disease with Marinesco-Sjogren syndrome: A rare condition characterized by abnormal lipid metabolism, vitamin E deficiency, incoordination and short stature.
  • Circulation symptoms: Symptoms affecting the circulatory system
  • Classic galactosemia: Rare serious genetic defect in galactose metabolism.
  • Classic migraine: Migraine is a neurological disorder that generally involves repeated headaches. Some people also have nausea, vomiting, and other symptoms. Most people with migraines do not have any warning before it occurs. However, some people have a visual disturbance called an aura before the headache starts.
  • Cleft lip -- palate -- mental retardation -- corneal opacity: A very rare syndrome characterized mainly by mental retardation, cleft lip and palate and cloudy corneas.
  • Closed-angle glaucoma: A severe form of glaucoma needing emergency treatment to avoid blindness.
  • Cloudy cornea as seen in corneal ulcer: A cloudy cornea is a loss of transparency of the cornea.
  • Cloudy vision: Cloudiness of the visual field
  • Coats Disease: A rare condition where a small group of dilated blood vessels (telangiectasia) form in the retina of one eye and can result in retinal detachment. It is believed to be a more severe form of Leber military aneurysm.
  • Cobra poisoning: The Cobra is a poisonous snake which can be found in Africa, Asia and other parts of the world. Some cobras are able to spit venom into the victims eye and cause serious symptoms.
  • Cocaine-induced hypertension: Cocaine-induced hypertension is high blood pressure caused by use of cocaine. Patients with an existing history of hypertension may suffer further blood pressure increases while taking cocaine and this can be serious. Severity of symptoms varies amongst patients depending on their susceptibility, underlying health and duration of cocaine use.
  • Cochleosaccular degeneration of the inner ear and progressive cataracts: A very rare syndrome characterized by cataracts and progressive damage of certain inner ear structures (cochlea and saccule) which results in progressive deafness and vision problems.
  • Cockayne syndrome: A rare genetic disorder characterized by a senile-like appearance, hearing and vision impairment and sun sensitive skin.
  • Cockayne syndrome type 1: A rare inherited condition characterized by short stature, light sensitivity and a prematurely aged appearance. Type 1 is an early-onset form and involves progressive symptoms that usually start after 1 year of age.
  • Cohen-Hayden syndrome: A very rare syndrome characterized mainly by mental retardation, eye defect and various growth abnormalities of the bone, skin and head.
  • Coloboma of iris: A hole in the iris (colored part of the eye) of the eye. The defect may be inherited or caused by surgery or injury to the eye. The severity of symptoms is determined by the size of the defect.
  • Cone shell poisoning: A number of species of cone shells are capable of envenomating humans. The toxin is a neurotoxin and thus primarily affects the nervous system. Cone shells are found mainly in shallow waters of the Indian and Pacific oceans. The toxicity varies amongst species with some delivering a benign stink whereas others are capable of causing death. The cone snails a proboscis on the end of which is a poison-filled barb.
  • Congenital Toxoplasmosis: Fetal infection with toxoplasmosis.
  • Congenital cystic eye, multiple ocular and intracranial anomalies: A rare birth syndrome characterized by various eye and brain abnormalities, The eye abnormality is a developmental disorder where a large cyst forms instead of one eye. The size of the cyst is variable.
  • Congenital disorder of glycosylation type 1/IIX: Congenital disorders of glycosylation is a group of very rare inherited metabolic disorder where defective carbohydrate compounds are attached to glycoproteins and thus impairing glycoprotein function. Type I/IIX refers to cases where the specific abnormality cannot be determined.
  • Congenital disorder of glycosylation type 1I: Congenital disorders of glycosylation is a group of very rare inherited metabolic disorder where defective carbohydrate compounds are attached to glycoproteins and thus impairing glycoprotein function. Type Ii is caused by a defect on chromosome 9q22 and involves a defect on the ALG2 gene.
  • Congenital glaucoma: A form of glaucoma affecting babies and younger children.
  • Congenital lactase deficiency: A congenital metabolic disorder where a deficiency of an enzyme called lactase impairs the body's ability to digest milk and other products that contain lactose. Symptoms tend to occur soon after consuming such products. The severity of symptoms depends on the degree of lactase deficiency.
  • Conn Syndrome-induced hypertension: Conn Syndrome-induced hypertension is high blood pressure associated with Conn Syndrome. It results from excessive production of a hormone called aldosterone by the adrenal glands. The high blood pressure often responds poorly to the usual medications. Death can result in severe cases.
  • Conradi-Huenermann Syndrome: A rare genetic disorder characterized by growth deficiency, short limbs, large skin pores, sparse hair and other abnormalities.
  • Conradi-Hunermann syndrome: A rare genetic disorder characterized by growth deficiency, short limbs, large skin pores, sparse hair and other abnormalities.
  • Conradi-Hünermann Syndrome: A condition which affects the development of bone and cartilage
  • Corn Lily poisoning: Corn Lily is a poisonous plant native to the Sierra Nevada mountains. It's appearance is similar to the corn grown as a crop. The plant poison primarily affects the nervous system.
  • Cornea disorders: Disorders affecting the cornea of the eye
  • Cornea guttata with anterior polar cataract: A rare eye disorder characterized by cataracts and a corneal abnormality called guttata.
  • Corneal abrasion: scratch on the corneal surface
  • Corneal dystrophy -- perceptive deafness: A very rare syndrome characterized by eye problems and deafness. Hearing starts to deteriorate during the 20's and 30's.
  • Corneal dystrophy and perceptive deafness: A very rare syndrome characterized by eye problems and deafness. Hearing starts to deteriorate during the 20's and 30's.
  • Corneal dystrophy crystalline of Schnyder: A rare disorder characterized by cloudy corneas believed to be due to abnormal lipid deposits in the corneas. A distinctive sign of the condition is the presence of a light-colored ring around the cornea due to abnormal lipid deposit (arcus juvenilis).
  • Corneal dystrophy, Fuchs' endothelial, 1: A rare inherited eye disorder involving degeneration of the inner (epithelial) layer of the cornea. In type 1, onset occurs early in life (from early childhood) and usually takes about 20 years to affect vision.
  • Corneal dystrophy, Fuchs' endothelial, 2: A rare inherited eye disorder involving degeneration of the epithelial layer of the cornea. In type 2, onset occurs later in life (usually 30-40 years of age) and usually takes about 20 years to affect vision.
  • Corneal dystrophy, epithelial basement membrane: An eye disease where corneal deterioration causes geographic, map-like lines to form on the surface of the cornea.
  • Corneal flash burns: Corneal injury from bright lights
  • Corneal opacities: can occur due to extrinsic factors or diseases of the cornea itself
  • Corneal ulcer: An ulcer occurring in the cornea.
  • Corticosteroid-induced hypertension: Corticosteroid-induced hypertension is high blood pressure caused by use of corticosteroids. Patients with an existing history of hypertension may suffer further blood pressure increases while taking corticosteroids. Severity of symptoms varies amongst patients depending on their susceptibility, underlying health and duration of corticosteroid therapy.
  • Cotton wool spots: Opacities in the retina of a white or gray colour.
  • Craniolenticulosutural dysplasia: A rare syndrome characterized by skeletal defects and an unusual facial appearance consisting mainly of a prominent forehead, wide-set eyes, broad nose and a prominent forehead with a birthmark.
  • Craniostenosis cataract: A rare condition characterized by the association of cataracts and premature fusion of the skull bones.
  • Craniosynostosis -- cataract: A rare disorder characterized cataracts and the premature fusion of skull bones which gives the head an unusual shape.
  • Criswick-Schepens syndrome: A rare progressive eye disorder which can range in severity.
  • Crome syndrome: A very rare disorder characterized by various abnormalities including mental retardation, epilepsy and eye and kidney problems.
  • Cushing's syndrome-induced hypertension: Cushing's syndrome-induced hypertension is high blood pressure caused by a condition caused Cushing's syndrome where the adrenal glands produce excessive amounts of cortisol.
  • Cyclosporine-induced hypertension: Cyclosporine-induced hypertension is high blood pressure caused by taking cyclosporine. Patients with an existing history of hypertension may suffer further blood pressure increases while taking amphetamines and this can be serious. Severity of symptoms varies amongst patients depending on their susceptibility, underlying health and duration of cyclosporine use.
  • Cysticercosis: An infectious disease caused by the pork tapeworm Taenia solium. If the larvae are ingested then a mild or asymptomatic tapeworm infection occurs. However, ingested eggs pass into the bloodstream where they can then enter various tissues and form the cysts that characterize cysticercosis.
  • Cystoid Macular Edema: Cystoid macular edema is swelling of the macula as a result of injury, disease or eye surgery. The buildup of fluid in the macula causes vision problems which usually resolves as the macular swelling reduces.
  • Cytomegalovirus retinitis: Inflammation of the retina of the eye which can cause blindness. The cytomegalovirus is an easily transmissible viral infection that is common but generally causes no symptoms except in infants and people with weakened immune systems.
  • DKA: A metabolic acidosis that results from the accumulation of ketones when diabetes mellitus is poorly controlled
  • DOC 12 (Neutral Lipid Storage Type): A rare inherited disorder involving the metabolism of fat which causes skin, muscle and blood abnormalities. The body is unable to metabolize (break down) triglycerides so they build up in various tissues throughout the body. The severity of the symptoms is variable as the body tissues and organs affected varies amongst patients.
  • Dahlberg syndrome: A rare condition characterized by hypoparathyroidism, nephropathy, congenital lymphedema, mitral valve prolapse and short end bones in fingers and toes.
  • De Barsy Syndrome: A rare inherited disorder characterized by loose, inelastic skin, involuntary limb movements, cloudy corneas and other abnormalities.
  • Deafness -- cataracts -- skeletal anomalies: A rare disorder characterized by deafness, cataracts and skeletal abnormalities as well as other anomalies.
  • Deafness progressive cataract autosomal dominant: A rare dominantly inherited disorder characterized by deafness and progressive cataracts. The deafness is caused by degeneration of a part of the inner ear . The hearing loss can start in the 3rd decade of life and cataracts occur before the 5th decade.
  • Decreased lacrimation as in case of Sjogren's syndrome: Dry eye is a disorder of the tear film due to tear deficiency or excessive tear evaporation which causes damage to the interpalpebral ocular surface
  • Del (2) (q14-q21): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in two reported cases. The manifestations linked to most genetic defects are often variable to some degree.
  • Del (2) (q21-q24): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Del (2) (q22-q24.2): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Del (2) (q23-q34) mosaicism: A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Del (3) (q12-q23): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Deletion 11p: A syndrome that is caused by the deletion of short arm (p) of chromosome 11. The type and severity of symptoms varies depending on the amount and exact location of the genetic material that is deleted.
  • Deletion 2q: A rare chromosomal disorder where part of the long arm (q) of chromosome 2 is deleted resulting in various abnormalities which are determined by the size of the deleted portion.
  • Deletion 2q24: A genetic disorder characterized by the deletion of a portion of the long arm of chromosome 2.
  • Deletion 6q: A rare chromosomal disorder where a part of the long arm (q) of chromosome 6 is deleted resulting in various abnormalities depending on the location and length of missing genetic material.
  • Delta-1-pyrroline 5-carboxylate synthetase deficiency: A rare syndrome caused by an enzyme deficiency (Delta-1-pyrroline 5-carboxylate synthetase).
  • Dementia, familial Danish: A rare inherited form of dementia caused by the deposit of abnormal substances in the brain, spinal cord and retina and the degeneration of brain tissue. Deafness and cataracts usually started in the 20's with severe deafness occurring by the age of 45. Movement problems usually started after the age of 40 with death occurring in the 5th or 6th decade.
  • Dennis-Fairhurst-Moore syndrome: A very rare lethal syndrome characterized mainly by dwarfism, characteristic facial features, small eyes and reduced hair.
  • Developmental Lactase Deficiency: This form of lactase deficiency occurs in premature infants. Lactase enzyme activity usually develops late in pregnancy so a preterm infant will not yet have developed this enzyme function. The greater the degree of prematurity, the greater the reduction in lactase activity.
  • Diabetes: Symptoms similar to those of diabetes
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 1: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 1 is linked to a defect on chromosome 6p21.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 10: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 10 is linked to a defect on chromosome 10p15.1.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 11: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 11 is linked to a defect on chromosome 14q24.3-q31.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 12: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 12 is linked to a defect on chromosome 2q33.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 13: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 13 is linked to a defect on chromosome 2q34.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 15: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 15 is linked to a defect on chromosome 6q21.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 17: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 17 is linked to a defect on chromosome 10q25.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 18: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 18 is linked to a defect on chromosome 5q31.1-q33.1.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 19: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 19 is linked to a defect on chromosome 2q24.3.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 2: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 2 is linked to a defect on chromosome 11p15.5.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 20: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 20 is linked to a defect on chromosome 12q24.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 21: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 21 is linked to a defect on chromosome 6q25.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 22: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 22 is linked to a defect on chromosome 3p21.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 23: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 23 is linked to a defect on chromosome 4q27.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 24: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 24 is linked to a defect on chromosome 10q23.31.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 3: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 3 is linked to a defect on chromosome 15q26.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 4: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 4 is linked to a defect on chromosome 11q13.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 5: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 5 is linked to a defect on chromosome 6q25.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 6: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 6 is linked to a defect on chromosome 18q21.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 7: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 7 is linked to a defect on chromosome 2q31.
  • Diabetes Mellitus, Insulin-Dependent, Susceptibility to, 8: Insulin-dependent diabetes is a condition where the body is unable to produce its own insulin in sufficient quantities to regulate blood sugar levels. Researchers have discovered a number of genes which are linked to an increased risk of developing type 1 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 81 is linked to a defect on chromosome 6q25-q27.
  • Diabetes Mellitus, Noninsulin-Dependent, Susceptibility to, 1: Noninsulin-dependent diabetes (Type 2 diabetes) is a type of diabetes that doesn't respond to insulin but does tend to respond to dietary measures and diabetes medication. Researchers have discovered a number of genes which are linked to an increased risk of developing Type 2 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 1 is linked to a defect on chromosome 2q37.3.
  • Diabetes Mellitus, Noninsulin-Dependent, Susceptibility to, 2: Noninsulin-dependent diabetes (Type 2 diabetes) is a type of diabetes that doesn't respond to insulin but does tend to respond to dietary measures and diabetes medication. Researchers have discovered a number of genes which are linked to an increased risk of developing Type 2 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 2 is linked to a defect on chromosome 12q24.2.
  • Diabetes Mellitus, Noninsulin-Dependent, Susceptibility to, 3: Noninsulin-dependent diabetes (Type 2 diabetes) is a type of diabetes that doesn't respond to insulin but does tend to respond to dietary measures and diabetes medication. Researchers have discovered a number of genes which are linked to an increased risk of developing Type 2 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 3 is linked to a defect on chromosome 20q12-q13.1.
  • Diabetes Mellitus, Noninsulin-Dependent, Susceptibility to, 4: Noninsulin-dependent diabetes (Type 2 diabetes) is a type of diabetes that doesn't respond to insulin but does tend to respond to dietary measures and diabetes medication. Researchers have discovered a number of genes which are linked to an increased risk of developing Type 2 diabetes. The genetic anomaly alone is not enough to cause the disease but simply increases the risk. Type 4 is linked to a defect on chromosome 5q34-q35.2.
  • Diabetes-like retinal edema: It occurs when fluid and protein collects under the retinal layer of the eye usually due to any trauma , infection or detachment of the retina
  • Diabetes-like symptoms: Symptoms similar to those of diabetes
  • Diabetic Ketoacidosis: A metabolic acidosis that results from the accumulation of ketones when diabetes mellitus is poorly controlled
  • Diabetic Lens Osmosis: Eye lens vision changes due to diabetic sugars; usually reversible.
  • Diabetic hypoglycemia: Low blood sugar attack from insulin or diabetes medications
  • Diabetic retinopathy: A complication of diabetes where the microvasculature of the eye is effected resulting in sight loss
  • Diffuse leiomyomatosis with Alport syndrome: A very rare syndrome characterized mainly by multiple tumors (in the esophagus, female genitals, trachea and bronchus) and Alport syndrome which involves progressive kidney dysfunction.
  • Digitorenocerebral syndrome: A very rare syndrome characterized by numerous abnormalities involving the brain, kidneys, fingers, toes, nails and face as well as mental retardation and vision impairment.
  • Dionisi-Vici-Sabetta-Gambarara syndrome: A very rare syndrome characterized mainly by brain abnormality, cataract and immunodeficiency.
  • Diplopia: When two images are visible from a single object
  • Diseases associated with senile cataract: It is a vision impairing disease characterised by gradual , progressive thickening of the lens.
  • Diseases related to congenital cataract: Congenital cataracts are usually diagnosed at birth. If a cataract goes undetected in an infant, permanent visual loss may ensue.
  • Disequilibrium syndrome: A complication that can occur during or after dialysis and probably caused by abnormal water balance within the brain. Swelling of the brain causes a range of neurological symptoms.
  • Disorder of Cornification 12 (Neutral Lipid Storage Type): A rare inherited disorder involving the metabolism of fat which causes skin, muscle and blood abnormalities. The body is unable to metabolize (break down) triglycerides so they build up in various tissues throughout the body. The severity of the symptoms is variable as the body tissues and organs affected varies amongst patients.
  • Dominant zonular cataract: A dominantly inherited form of cataract where only some of the layers of the eye lens are affected.
  • Double Vision in Both Eyes: Double vision occurring when looking through both eyes, present either at all times or on particular eye movements.
  • Double Vision in One Eye: Double vision occurring in one eye only (ie. is seen when the other eye is covered), either at all times or on particular eye movements; is almost always due to a problem with the eye itself and is thus less serious than if both eyes are affected.
  • Double vision: Seeing two images, overlapping images, shadow images, or ghost images (diplopia)
  • Down Syndrome: A chromosome syndrome causing physical effects and mental retardation.
  • Drug-induced hypertension: Drug-induced hypertension is high blood pressure caused by taking certain drugs or medications e.g. corticosteroids, cyclosporine, amphetamines, alcohol and estrogens.
  • Dry eye: Dryness of one or both eyes
  • Dry eyes: Dry eyes are eyes that feel dry and gritty often due to a lack of sufficient tear production.
  • Dup (1) (q25-qter) and del (18p): A very rare chromosomal disorder (single reported case) where the end portion of the long arm (q25-qter) of chromosome one is duplicated and the short arm of chromosome 18 is missing.
  • Dup (1) (q42-qter) & del (18p): A rare chromosomal disorder which manifests as various physical and mental abnormalities. Patients tend to die within the first couple of decades but the condition is poorly defined.
  • Dup (2) (p25-p21): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (2) (pter-p23): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in the few reported cases. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (2) (q32-qter): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in the few reported cases. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (3) (pter-p24) and del (4) (pter-p16): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in six reported cases. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (3) (pter-p25.1) and del (12) (pter-p13.3): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (3) (q25-q27): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in one reported case. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (3) (q25-qter): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in a few reported cases. The manifestations linked to most genetic defects are often variable to some degree.
  • Dup (3) (q26.2-qter) and del (18p): A rare chromosomal disorder characterized by various anomalies. The listed symptoms are those observed in two reported cases. The manifestations linked to most genetic defects are often variable to some degree.
  • Dwarfism -- stiff joint -- ocular abnormalities: A very rare form of dwarfism characterized by short stature as well as stiff joints and eye abnormalities.
  • Dysequilibrium syndrome: A very rare syndrome characterized mainly by mental retardation and nonprogressive incoordination.
  • Dystrophia myotonica 1: A rare genetic disorder characterized by myotonia, muscle atrophy, cataracts and hypogonadism.
  • Ecstasy abuse: Use of the illicit drug called ecstasy
  • Ecstasy addiction: An uncontrollable desire to use ecstasy on a regular basis. Chronic ecstasy use can lead to dependency in as little as two weeks. Ecstasy is a synthetic psychoactive drug often used as a recreational drug. Street names for the drug includes: XTC, Adam, Clarity, Lover's Speed, Hug, Beans and Love Drug. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
  • Ectodermal dysplasia: A group of rare inherited conditions which affect the ectodermal skin layer which includes the skin, hair, teeth and nails.
  • Ehlers-Danlos syndrome, Beasley Cohen type: A rare condition where mental retardation, deafness and cataracts are associated with a connective tissue disorder called Ehlers-Danlos syndrome.
  • Electrical burns: Burns caused when an electric current pass through the body or part of it. The symptoms and severity of the burn depends on the strength of the electrical current, the duration of the exposure and the part of the body involved. Prompt treatment in more severe cases can improve the prognosis.
  • Emanuel syndrome: A rare chromosomal disorder where a portion of chromosome 11 is translocated with a portion of chromosome 22. The disorder involves a wide range of abnormalities such as kidney, genital and heart abnormalities, mental retardation, small head and failure to thrive.
  • Empty sella syndrome -- acquired: A disorder where the bony structure surrounding the pituitary gland (sella) appears to be empty except for the cerebrospinal fluid - often results from radiation, surgery or injury which causes the pituitary gland to shrink.
  • Encephalitis, California serogroup viral: A mosquito borne viral illness
  • Enhanced S-Cone Syndrome: A rare inherited form of eye disease.
  • Epimetaphyseal dysplasia cataract: A rare condition characterized mainly by the association of cataracts with bone abnormalities.
  • Episcleritis: This is inflammation of the episclera and adjacent tissues
  • Episodic ataxia, type 3: A rare genetic disorder characterized by episodes of incoordination and unsteadiness as well as tinnitus and vertigo. Stress and exertion may trigger the episodes. Type 3 is caused by a defect on chromosome 1q42.
  • Episodic ataxia, type 7: A rare genetic disorder characterized by episodes of incoordination and unsteadiness which lasted from hours to days. Episodes occurred from monthly to yearly and the frequency tends to lessen with age. Stress and exertion may trigger the episodes. Type 7 is caused by a defect on chromosome 19q13.
  • Epitheliopathy, acute posterior multifocal placoid: A rare eye disorder where vision is temporarily impaired with no apparent cause.
  • Erythromycin -- Teratogenic Agent: There is evidence to indicate that exposure to Erythromycin (an antibiotic) during pregnancy may have a teratogenic effect on the fetus. A teratogen is a substance that can cause birth defects. The likelihood and severity of defects may be affected by the level of exposure and the stage of pregnancy that the exposure occurred at.
  • Erythropoietin-induced hypertension: Erythropoietin-induced hypertension is high blood pressure caused by taking erythropoietin which is sometimes used to treat anemia in conditions such as chornic kidney failure. Patients with an existing history of hypertension may suffer further blood pressure increases while taking amphetamines and this can be serious. Severity of symptoms varies amongst patients depending on their susceptibility, underlying health and duration of erythropoietin use.
  • Esthesioneuroblastoma: A rare type of tumor that occurs in the upper nasal cavity. The tumor may obstruct one or both nostrils.
  • Exudative retinopathy familial, X-linked, recessive: A rare progressive eye disorder which is inherited in a recessive X-linked manner. The development of the retinal blood vessels is incomplete resulting in parts of the retina having no blood vessels which is necessary for it's function. The disorder is caused by a genetic defect on chromosome 11q14-q21 and the severity of the condition.
  • Exudative retinopathy familial, autosomal dominant: A rare progressive eye disorder which is inherited in a dominant manner. The development of the retinal blood vessels is incomplete resulting in parts of the retina having no blood vessels which is necessary for it's function. The disorder is caused by a genetic defect on chromosome 11q14-q21 and the severity of the condition is variable.
  • Exudative retinopathy familial, autosomal recessive: A rare progressive eye disorder which is inherited in a recessive manner. The development of the retinal blood vessels is incomplete resulting in parts of the retina having no blood vessels which is necessary for it's function.
  • Exudative retinopathy, familial: A rare progressive eye disorder which is inherited in a familial manner. The development of the retinal blood vessels is incomplete resulting in parts of the retina having no blood vessels which is necessary for it's function.
  • Exudative vitreoretinopathy 3: A rare progressive eye disorder caused by a genetic defect on chromosome 11p13-p12. The development of the retinal blood vessels is incomplete resulting in parts of the retina having no blood vessels which is necessary for it's function.
  • Exudative vitreoretinopathy 4: A rare progressive eye disorder caused by a genetic defect on chromosome 11q13.4. It can be inherited in a dominant or recessive manner. The development of the retinal blood vessels is incomplete resulting in parts of the retina having no blood vessels which is necessary for it's function.
  • Eye Herpes: Eye infection caused by herpes simplex virus; may result in corneal ulcer
  • Eye allergy: Allergic of the eye is usually characterized by inflammation of the conjunctiva associated with itching, redness and watering of the eyes.
  • Eye conditions: Any condition that affects the eyes
  • Eye floaters: The appearance of floating objects in a persons vision
  • Eye irritation: A sensation or feeling of discomfort to the eye
  • Eye muscle strain: An eye disorder caused by strain on the eye muscles. The eyes become tired when being used intensely such as occurs when working on the computer, driving or reading, long periods of time straining to see in dim light or extremely bright lights. Eye refraction problems can also cause eye strain.
  • Eye symptoms: Symptoms affecting the eye
  • Eyeball spots: Spots affecting the eyeball
  • Fabry disease: Genetic fat storage disorder
  • Face symptoms: Symptoms affecting the face
  • Faciooculoacousticorenal syndrome: A very rare syndrome characterized by facial, eye, ear and kidney abnormalities.
  • Facioplegic migraine: Unilateral facial weakness occurring during a migraine.
  • Familial Granulomatosis, Blau type: A rare chronic inflammatory condition characterized by arthritis, dermatitis and uveitis. The condition may have a similar presentation to a condition called early-onset sarcoidosis and genetic testing may be needed to distinguish the conditions.
  • Familial Lactase Deficiency: A congenital metabolic disorder where normal amounts of lactase are produced but the lactase is defective and unable to digest milk and other products that contain lactose. Symptoms tend to occur soon after consuming such products.
  • Familial, Systemic, Juvenile Granulomatosis: A rare chronic inflammatory condition characterized by arthritis, dermatitis and uveitis. The condition may have a similar presentation to a condition called early-onset sarcoidosis and genetic testing may be needed to distinguish the conditions.
  • Fechtner syndrome: A rare condition characterized by the presence of large blood platelets, kidney inflammation, deafness and abnormal leukocytes.
  • Fine-Lubinsky syndrome: A very rare syndrome characterized mainly by a short head, deafness, cataracts and mental retardation.
  • Finlay-Markes syndrome: A very rare syndrome characterized mainly by scalp, nipple and ear abnormalities.
  • Flynn-Aird syndrome: A rare inherited disorder where neurological degeneration causes symptoms such as dementia, ataxia, eye problems, skin disorders and muscle wasting.
  • Francois dyscephalic syndrome: A rare genetic disorder characterized by very small stature, microphthalmia, small pinched nose and hypotrichosis.
  • Fuchs' Dystrophy: Cataract-like vision problems from corneal deposits.
  • Fungal meningitis: Fungal meningitis is an infection that causes swelling and irritation of the tissue around the brain and spinal cord. It usually strikes people whose weakened immune systems can't fight off infection. The disease is not common. but it can be very serious.
  • Galactosemia I: A rare inherited disorder where deficiency of a particular enzyme (galactose-1-phosphate uridyl transferase) prevents the metabolism of galactose which is a sugar component of milk. Ranges from milk intolerance in mild cases to death in severe untreated cases.
  • Galactosemia III: A rare inherited disorder where deficiency of a particular enzyme (UDP-Galactose-4-epimerase) prevents the metabolism of galactose which is a sugar component of milk. The condition may vary from mild to severe.
  • Gangliosidosis, generalized GM1 type 3: A rare biochemical disorder involving a deficiency of an enzyme (beta-galactosidase A) which results in the accumulation of harmful chemicals (GM1 gangliosides) in the central nervous system and other body tissues. Type III involves a lesser degree of accumulation than type II or I.
  • Gaucher-like disease: A very rare inherited condition where the body's inability to bread down a certain fat (glucocerebroside) causes it to accumulate in body tissues and organs where it can cause damage. Gaucher-like disease is a sub-type of Gaucher disease which primarily affects the heart.

Conditions listing medical symptoms: Blurred vision:

The following list of conditions have 'Blurred vision' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.

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Conditions listing medical complications: Blurred vision:

The following list of medical conditions have 'Blurred vision' or similar listed as a medical complication in our database.
Last revision: Nov 21, 2003

 

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