Twenty-twenty meaning

twĕntē-twĕntē, twŭntē-twŭntē
Having normal visual acuity.
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Having normal visual acuity.
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Having normal visual acuity. A person with twenty-twenty vision can see type as small as one-third of an inch at a distance of twenty feet.
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Origin of twenty-twenty

  • From a method of testing vision by reading charts at a distance of 20 feet

    From American Heritage Dictionary of the English Language, 5th Edition

  • From a method of testing vision by reading charts at a distance of 20 feet.

    From Wiktionary