What is 20/25 vision?

Answer

A person with 20/25 vision can stand 20 feet from an eye chart and see the same detail as a person who has 20/20 vision that stands 25 feet from the same chart, according to Divyesh Eye Hospital. The term "20/25 vision" is used to describe the quality of a person's vision compared to someone with 20/20 vision, which is considered “normal” or “average” vision.

Divyesh Eye Hospital explains that 20/20 vision is not necessarily “perfect” vision although some people believe that to be the case. Rather, this figure is used for comparison purposes. Some people can see better than 20/20. For example, someone with 20/15 vision can see at 20 feet what the average person can see at 15 feet. Alternatively, someone with 20/40 vision must stand 20 feet away from the eye chart to see the same amount of detail that a person with 20/20 vision can see at 40 feet.

These comparisons have several practical uses, says Divyesh Eye Hospital. For example, they are used to determine the cut-off for legal blindness, which is 20/200 in the United States. They are also used to determine eligibility and licensing requirements for certain occupations. To obtain a pilot's license, 20/20 vision is commonly required. One must have 20/40 vision to gain a driver’s license without the requirement of corrective lenses, and 20/80 may be used as a qualification for special education assistance.

Q&A Related to "What is 20/25 vision?"
20/20 refers to visual clarity at a distance of twenty feet. If you have 20/20 vision, you can view an object at twenty feet away with the same clarity as a "normal" person
http://www.quora.com/What-is-20-20-vision
In order to calculate 20/20 vision, you must first realize that the first number is always 20. It refers to what you can see at 20 feet in relation to an average person with normal
http://www.ehow.com/how_5066819_understand-vision-...
20/25 means for eye sight vision means less than 20/20 good vision. 20/25
http://www.chacha.com/question/what-does-20%26%234...
It means that you must be at 20 feet to see what a person with perfect vision would see at 70.
http://wiki.answers.com/Q/What_is_20-70_vision
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A 20 15 vision is an eye sight reading from a Snellen chart. A 20 15 vision reading means that, where a normal eye sees objects at 20 feet away. A 20 15 eye sees ...
A person who has 20/200 vision is considered to be legally blind. This vision is considered to be pretty bad. Normal vision is 20/20 and a person with 20/200 sees ...
A 20 15 vision is considered to be absolutely good. What it means that if you were to stand 20 feet away from an object, you will see as clearly as a person with ...
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