Visual Acuity Test
Alternate Names : Eye Test - Acuity, Vision Test - Acuity
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Normal Values
Visual acuity is expressed as a fraction. The top number refers to the distance you stand from the chart. This is usually 20 feet. The bottom number indicates the distance at which a person with normal eyesight could read the same line you correctly read.
For example 20/20 is considered normal. 20/40 indicates that the line you correctly read letters at 20 feet that could be read by a person with normal vision at 40 feet.
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