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Meaning of visual acuity

vis'ual acu'ity

Pronunciation: [key]
— Ophthalm. Ophthalm.
  1. acuteness of the vision as determined by a comparison with the normal ability to define certain letters at a given distance, usually 20 ft. (6 m). Abbr.: V.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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