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Definition of Visual acuity

Visual acuity: The clarity or clearness of the vision, a measure of how well a person sees. The ability to distinguish details and shapes of objects; also called central vision.

The word "acuity" comes from the Latin "acuitas" = sharpness.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=8241
Last Editorial Review: 9/26/1999

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