Legal blindness
The definition varies from country to country. In the United States, the definition of legal blindness is: {{}}Visual acuity of 20/200 or worse in the better eye with corrective lenses (20/200 means that a person must be at 20 feet from an eye chart to see what a person with normal vision can see at 200 feet): or Visual field restriction to 20 degrees diameter or less (tunnel vision) in the better eye. Note that these criteria are used to determine eligibility for government disability benefits and do not necessarily indicate a person's ability to function.

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legal blindness n blindness as recognized by law which in most states of the U.S. means that the better eye using the best possible methods of correction has visual acuity of 20/200 or worse or that the visual field is restricted to 20 degrees or less
le·gal·ly blind adj

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blindness as defined by law; in most states of the United States, maximal visual acuity of the better eye, after correction, of 20/200 or less, with a total diameter of the visual field in that eye of 20 degrees or less.

Medical dictionary. 2011.

Look at other dictionaries:

  • legal blindness — noun vision that is 20/200 or worse in both eyes (20/200 vision is the ability to see at 20 feet what a normal eye can see at 200 feet) • Hypernyms: ↑blindness, ↑sightlessness, ↑cecity …   Useful english dictionary

  • legal blindness — noun A degree of visual acuity that is low enough to determine that a person needs special assistance …   Wiktionary

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  • blindness — I (New American Roget s College Thesaurus) Lack of sight Nouns 1. blindness, sightlessness, anopsia, cecity; total or legal blindness, binocular deprivation; blind spot; amaurosis; cataract; dimsightedness (See vision); benightedness; night or… …   English dictionary for students

  • blindness — See blindingly. * * * Inability to see with one or both eyes. Transient blindness (blackout) can result from vertical acceleration causing high gravitational forces, glomerulonephritis (a kidney disease), or a clot in a blood vessel of the eye.… …   Universalium

  • blindness — noun the state of being blind or lacking sight (Freq. 7) • Syn: ↑sightlessness, ↑cecity • Derivationally related forms: ↑sightless (for: ↑sightlessness), ↑blind …   Useful english dictionary

  • Blindness, legal — The definition varies from country to country. In the United States, the definition of legal blindness is: {{}}Visual acuity of 20/200 or worse in the better eye with corrective lenses (20/200 means that a person must be at 20 feet from an eye… …   Medical dictionary

  • blindness — index ignorance, nescience Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • BLINDNESS — The standard Hebrew term for a blind person is (Heb. עִוֵּר) (ʿivver; Ex. 4:11; et al.), a noun in the form used for bodily defects. The abstract form is עִוָּרוֹן (ʿivvaron, blindness ; Deut. 28:28; Zech. 12:4). The word סַנְוֵרִים (sanverim;… …   Encyclopedia of Judaism

  • blindness — 1. Loss of the sense of sight; absolute b. connotes no light perception. SEE ALSO: amblyopia, amaurosis. 2. Loss of visual appreciation of objects although visual acuity is normal. 3 …   Medical dictionary

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