Sinonim 20/20

English Thesaurus

1. normal visual acuity, as measured by the ability to read charts at a distance of 20 feet (noun.cognition)

hypernym	:	acuity, sharp-sightedness, visual acuity,
definition	:	sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart) (noun.cognition)