Visual-acuity meaning

Sharpness of vision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20.
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Visual acuity is defined as how sharp your vision is or how well you see, especially how well you see fine details.

A person who has perfect vision and who can make out fine details is an example of someone with high visual acuity.

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Sharpness of vision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20.
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The ability of the eye to discriminate detail, usually tested by comparison with the power of the normal eye to distinguish certain letters on a standard chart at a given distance, generally 20 feet.
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