What is legally blind number?

Part 1 of the U.S. definition of legal blindness states this about visual acuity: A visual acuity of 20/200 or less in the better-seeing eye with best conventional correction (meaning with regular glasses or contact lenses).


What prescription number is considered legally blind?

Simply put, if your prescription is -2.5 or lower, this means that you are legally blind. Visual acuity of -2.5 is equivalent to 20/200 vision. Visual acuity of -3.0, for instance, means that you have 20/250 or 20/300 vision. From there, visual acuity of -4.0 means that you have 20/400 vision.

Is minus 7 legally blind?

The definition of legal blindness is 20/200 vision WITH correction. If you see better than 20/200 with your -7.00 on you are NOT legally blind.


What counts as legally blind?

Visual acuity less than 20/200 is considered legally blind, but to actually fit the definition, the person must not be able to attain 20/200 vision even with prescription eyewear. Many people who would be legally blind without eyewear can function well in everyday life with appropriate glasses or contact lenses.

Is 5.5 eyesight legally blind?

Frequently Asked Questions. Legal blindness is defined as 20/200 vision. The prescription equivalent is -2.5.


Blind VS Legally Blind (What is Legal Blindness)



Is minus 6 legally blind?

A measurement of -6 is certainly not nothing and will require corrective lenses. It is, however, far from being blind and can be corrected by wearing glasses or contact lenses.

Is minus 10 legally blind?

Blindness is also defined as visual acuity of less than 3/60, or corresponding visual field loss to less than 10 degrees, in the better eye with best possible correction.

Is minus 9 legally blind?

In the United States, a person has legal blindness if: Their vision with glasses or contacts is 20/200 or worse. Their visual field is 20 degrees or less in the better-seeing eye.


How do you prove you are legally blind?

We consider you to be blind if your vision can't be corrected to better than 20/200 in your better eye. We also consider you blind if your visual field is 20 degrees or less in your better eye for a period that lasted or is expected to last at least 12 months.

Is 6 60 vision legally blind?

Moderate – visual acuity worse than 6/18 to 6/60. Severe – visual acuity worse than 6/60 to 3/60. Blindness – visual acuity worse than 3/60.

Is minus 13 legally blind?

Is minus 13 legally blind? You are legally blind when your visual acuity drops below 20/200 even with best possible correction or if you have a visual field less than 20 degrees. You are not legally blind as long as you can see 20/200 with your glasses.


What does negative 7 vision mean?

In general, the further away from zero the number on your prescription, the worse your eyesight and the more vision correction (stronger prescription) you need. A “plus” (+) sign in front of the number means you are farsighted, and a “minus” (-) sign means you are nearsighted.

What is the highest eye prescription?

Mild: -0.50 to -3. Moderate: -3.25 to -5.00. High: -5.25 to -10. Extreme: greater than-10.
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Your glasses prescription is fairly simple and consists of three parts:
  • Sphere: Nearsightedness/farsightedness.
  • Cylinder: Astigmatism.
  • Axis: Direction of the astigmatism between 1° and 180°


What is the difference between blind and legally blind?

Legally blind means a person has a corrected vision of 20/200 in their best-seeing eye. If visual aids such as glasses can correct a person's vision to 20/20, they are not considered legally blind. Totally blind refers to a complete loss of sight.


Is 20 400 worse than 20 200?

20/30 to 20/60 is considered mild vision loss, or near-normal vision. 20/70 to 20/160 is considered moderate visual impairment, or moderate low vision. 20/200 to 20/400 is considered severe visual impairment, or severe low vision. 20/500 to 20/1,000 is considered profound visual impairment, or profound low vision.

What does 20 400 eyesight look like?

Someone with a visual acuity of 20/400 can see at 20 feet what someone with normal sight can see at 400 feet. A normal visual field is about 160-170 degrees horizontally. Vision impairment severity may be categorized differently for certain purposes.

What percent of vision loss qualifies for disability?

Medically Qualifying With Vision Loss

The most straightforward way to qualify for disability is to prove that your vision is legally blind, or 20/200 or worse. This will automatically qualify for disability benefits.


What does negative 6 vision mean?

Last Updated Nov 27, 2022. People with nearsightedness struggle to see things far away from the face. For people with extreme nearsightedness, defined as a prescription of -6.0 diopters or more, it may be difficult to see anything more than a foot or so away from the face.

What does 6 12 eyesight mean?

So, if your vision is 6/12 this means that you can see, at 6 metres, what a 'normal' person can see at 12 metres from the chart. That is, your central vision is half of normal.

What is the highest power of glasses?

Non-prescription reading glasses usually range in power from +0.75 diopter to +3.00 diopters (D).


What is the highest degree for glasses?

Any myopia exceeding –6.00 dioptres or 600 degrees is considered high. Over 800 degrees is considered as severe and over 1,200 degrees, extreme.

How to improve eyesight?

Other Tips to Increase Eyesight
  1. Eat Healthy Foods.
  2. Stop Smoking.
  3. Always Wear Sunglasses.
  4. Wear Protective Eyewear.
  5. Take Breaks from the Computer Screen.
  6. Visit Your Eye Doctor Regularly.


What vision is minus 5?

A minus sign before the number indicates that you are nearsighted, while a plus sign means that you're farsighted. Lens power is measured in diopters. The higher the number, the stronger the prescription. For example, “-5.00” written under sphere means that you are very nearsighted and need a five diopter correction.


What does minus 5 mean in eyesight?

If your number is between -0.25 and -2.00, you have mild nearsightedness. If your number is between -2.25 and -5.00, you have moderate nearsightedness. If your number is lower than -5.00, you have high nearsightedness.

What is the highest minus power in eye?

The higher the number, the more short sighted you are.
  • Mild myopia includes powers up to -3.00 dioptres (D).
  • Moderate myopia, a power of -3.00D to -6.00D.
  • High myopia is usually a power over -6.00D.