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Impaired vision

Impaired vision: Introduction

Any type of vision loss (e.g. blindness, blurred vision, double vision, etc.) is a symptom of great concern. Many of the causes are very serious medical conditions. Certain types of vision changes can be a medical emergency where delay can lead to loss of sight (e.g. for causes such as glaucoma, eye injury, retinal detachment) or loss of life (e.g. for causes such as stroke, TIA, etc.). Even transient or temporary blindness or loss of vision cannot be ignored because it can result from serious conditions such as stroke, TIA, hypertension, epilepsy, or migraine. Seek immediate professional medical attention for any such symptoms of vision changes....more »

» Review Causes of Impaired vision: Causes | Symptom Checker » | Assessment Questionnaire »

Causes of Impaired vision:

The following medical conditions are some of the possible causes of Impaired vision. There are likely to be other possible causes, so ask your doctor about your symptoms.

» Review Causes of Impaired vision: Causes | Symptom Checker » | Assessment Questionnaire »

Home Diagnostic Testing and Impaired vision

Home medical tests possibly related to Impaired vision:

Causes of Types of Impaired vision:

Review the causes of these more specific types of Impaired vision:

Review causes of types of Impaired vision in more specific categories:

Impaired vision: Symptom Checker

Listed below are some combinations of symptoms associated with Impaired vision, as listed in our database. Visit the Symptom Checker, to add and remove symptoms and research your condition.

Symptom Checker

Symptom Checker

Impaired vision Treatments

Review further information on Impaired vision Treatments.

Stories from Users for Impaired vision

Real-life user stories relating to Impaired vision:

Message Boards for Impaired vision

Symptom specific forums: The following patient stories in our interactive forums and message boards relate to Impaired vision or relevant symptoms:

Diagnostic tests for Impaired vision:

Various tests are used in the diagnosis of Impaired vision. Some of these are listed below :

  • Physical examination
    • Blood pressure - high blood pressure increases risk of carotid artery insufficiency, hypertensive retinopathy, papilledema and stroke.
    • Visual acuity - in both eyes and with and without glasses (if worn) to determine any refractive error.
    • Visual field testing - to detect either a contraction (a local or general reduction in the area of field) or a scotoma (an island of loss within the field). Use Confrontation testing, Perimetry testing and Central field testing. Mapping the visual field defect can help determine cause. e.g. glaucoma, pituitary tumor, toxic causes such as methyl alcohol.
    • Examination of pupils and the pupil reflexes
    • Ophthalmoscopy and slit lamp examination - to examine the optic nerve, macula and retina and assist in diagnosis of cataracts, iritis, keratitis, glaucoma, retinitis, foreign bodies, detached retina. Specifically look for papilledema (swelling of the optic nerve) which suggests optic neuritis.
    • Ocular motility testing
  • more tests...»

Impaired vision: Animations

Medications or substances causing Impaired vision:

The following drugs, medications, substances or toxins are some of the possible causes of Impaired vision as a symptom. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.

Impaired vision: Comorbid Symptoms

Some of the comorbid or associated medical symptoms for Impaired vision may include these symptoms:

Causes of General Symptom Types

Research the causes of these more general types of symptom:

Research the causes of related medical symptoms such as:

Causes of Similar Symptoms to Impaired vision

Research the causes of these symptoms that are similar to, or related to, the symptom Impaired vision:

Assessment Questionnaire: Questions your doctor may ask (and why!)

During a consultation, your doctor will use various techniques to assess the symptom: Impaired vision. These will include a physical examination and possibly diagnostic tests. (Note: A physical exam is always done, diagnostic tests may or may not be performed depending on the suspected condition) Your doctor will ask several questions when assessing your condition. It is important to openly share any pertinent information to help your doctor make an accurate diagnosis.

It is also very important to bring an up-to-date list of all of your all medical conditions, medications including dosages, and names of numbers of any specialist you see.

Create your printable checklist here.

See Impaired vision Assessment Questionnaire (19 listings)

Impaired vision: Deaths

Read more about causes and Impaired vision deaths.

Impaired vision: Research Related Doctors & Specialists

Other ways to find a doctor, or use doctor, physician and specialist online research services:

Impaired vision: Undiagnosed Conditions

Conditions that are commonly undiagnosed in related areas may include:

Organs affected by Impaired vision:

The list of organs typically affected by Impaired vision may include, but is not limited to:

Detailed list of causes of Impaired vision

The list below shows some of the causes of Impaired vision mentioned in various sources:

How Common are these Causes of Impaired vision?

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Impaired vision. Of the 1545 causes of Impaired vision that we have listed, we have the following prevalence/incidence information:

  • 15 causes are "very common" diseases
  • 10 causes are "common" diseases
  • 9 causes are "uncommon" diseases
  • 16 causes are "rare" diseases
  • 24 causes are "very rare" diseases
  • 1494 causes have no prevalence information.

Conditions listing medical symptoms: Impaired vision:

The following list of conditions have 'Impaired 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.

Select from the following alphabetical view of conditions which include a symptom of Impaired vision or choose View All.

View All A B C D E F G H I J K L M N O P R S T U V W X Z #











Conditions listing medical complications: Impaired vision:

The following list of medical conditions have Impaired vision or similar listed as a medical complication in our database. The distinction between a symptom and complication is not always clear, and conditions mentioning this symptom as a complication may also be relevant. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.
























Join in at the forums

Ask or answer a question about symptoms or diseases at one of our free interactive user forums.

Medical story forums: If you have a medical story then we want to hear it.

See a list of all the medical forums

Causes of Impaired vision Based on Risk Factors

This information shows analysis of the list of causes of Impaired vision based on whether certain risk factors apply to the patient:

  • Travel - has the patient travelled recently?
  • Diabetes - history of diabetes or family history of diabetes?

    Doctors and specialists: Who should I consult about Impaired vision?

    Depending on the seriousness of the onset of Impaired vision, you may want to consult one of the following medical professionals.

    Important:In extreme cases, always seek advice from emergency services :

    Classifications of Impaired vision:

    Subtypes of Impaired vision:

    Blindness (496 causes), Blurred vision (982 causes), Night blindness (134 causes), Cloudy vision (316 causes), Loss of vision (75 causes), Peripheral vision loss (72 causes), Difficulty focusing (1 cause), Visual impairment (102 causes), Halo around lights (1 cause), Visual halo (12 causes), Cataracts (330 causes), Cotton wool spots (8 causes), Tunnel vision (74 causes), Fleeting blindness (14 causes), Acute blindness (14 causes), Blindness in one eye (9 causes), Blind spot (51 causes), Blindness in both eyes (3 causes), Chronic blindness (6 causes), Hemianopsia (6 causes), Visual blurring (19 causes), Blurred Vision in Both Eyes (1 cause), Diplopia (66 causes), Hemianopia (26 causes), Visual Floaters (11 causes), Halo vision (5 causes), Eye floaters (9 causes), Blurred Vision in One Eye (1 cause), Cataract (281 causes), Eyeball spots (7 causes), Floaters (18 causes), Double Vision in Both Eyes (43 causes), Corneal opacities (40 causes), Double Vision in One Eye (16 causes)

    Medical Conditions associated with Impaired vision:

    Vision changes (2526 causes), Visual problems (2143 causes), Vision distortion (1970 causes), Vision symptoms (2526 causes), Eye symptoms (5412 causes), Face symptoms (8109 causes), Head symptoms (10192 causes)

    Symptoms related to Impaired vision:

    Blindness (496 causes), Blurred vision (982 causes), Night blindness (134 causes), Double vision (221 causes), Eye injury, Macular degeneration, Age-related macular degeneration, Cataracts (330 causes), Glaucoma (150 causes), Certain eye diseases, Retinal conditions, Retinal tear

    Medical articles on signs and symptoms:

    Doctor-patient articles related to symptoms and diagnosis:

    These general medical articles may be of interest:

    Medical News summaries about Impaired vision

    Our news pages contain the following medical news summaries about Impaired vision and many other medical conditions:

    Evidence Based Medicine Research for Impaired vision

    Medical research papers related to Impaired vision include:

    Research More Evidence-Based Medicine at

    More Ways To Research Medical Signs and Symptoms:


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