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Diseases » Blindness » Summary
 

What is Blindness?

What is Blindness?

  • Blindness: The inability to see out of the eyes.
  • Blindness: Visual impairments limiting one or more of the basic functions of the eye: visual acuity, dark adaptation, color vision, or peripheral vision. These may result from EYE DISEASES; OPTIC NERVE DISEASES; VISUAL PATHWAY diseases; OCCIPITAL LOBE diseases; OCULAR MOTILITY DISORDERS; and other conditions. Visual disability refers to inability of the individual to perform specific visual tasks, such as reading, writing, orientation, or traveling unaided. (From Newell, Ophthalmology: Principles and Concepts, 7th ed, p132)
    Source - Diseases Database
  • Blindness: lack of sight.
    Source - WordNet 2.1

Blindness: Introduction

Types of Blindness:

Types of Blindness:

Broader types of Blindness:

How many people get Blindness?

Prevalance of Blindness: 1,100,000 people are legally blind in the US (Research to Prevent Blindness, NISE, NSF)
Prevalance Rate of Blindness: approx 1 in 247 or 0.40% or 1.1 million people in USA [about data]
Worldwide prevalence: 42,000,000 people are blind worldwide (Research to Prevent Blindness, NISE, NSF)

How serious is Blindness?

Complications of Blindness: see complications of Blindness

What causes Blindness?

Causes of Blindness: see causes of Blindness
Risk factors for Blindness: see risk factors for Blindness

What are the symptoms of Blindness?

Symptoms of Blindness: see symptoms of Blindness

Complications of Blindness: see complications of Blindness

Blindness: Testing

Diagnostic testing: see tests for Blindness.

Misdiagnosis: see misdiagnosis and Blindness.

How is it treated?

Treatments for Blindness: see treatments for Blindness
Prevention of Blindness: see prevention of Blindness
Research for Blindness: see research for Blindness

Society issues for Blindness


Hospitalization statistics for Blindness: The following are statistics from various sources about hospitalizations and Blindness:

  • 0.005% (580) of hospital consultant episodes were for blindness and low vision in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 92% of hospital consultant episodes for blindness and low vision required hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 46% of hospital consultant episodes for blindness and low vision were men in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 54% of hospital consultant episodes for blindness and low vision were for women in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 31% of hospital consultant episodes for blindness and low vision required emergency hospital admission in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 36 days was the mean length of stay in hospitals for blindness and low vision in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • 2 days was the median length of stay in hospitals for blindness and low vision in England 2002-03 (Hospital Episode Statistics, Department of Health, England, 2002-03)
  • more statistics...»

Organs Affected by Blindness:

Organs and body systems related to Blindness include:

Name and Aliases of Blindness

Main name of condition: Blindness

Other names or spellings for Blindness:

Vision disorders, Visual disturbance, Visual impairment, Blind or partially sighted Source - Diseases Database

Sightlessness, Cecity
Source - WordNet 2.1

Blindness: Related Conditions

Research the causes of these diseases that are similar to, or related to, Blindness:

 

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