visual acuity
noun Ophthalmology.
acuteness of the vision as determined by a comparison with the normal ability to define certain letters at a given distance, usually 20 feet (6 meters). Abbreviation: V.
Origin of visual acuity
First recorded in 1885–90
Words nearby visual acuity
vista,
vistadome,
vistaed,
vistula,
visual,
visual acuity,
visual aid,
visual aids,
visual album,
visual allesthesia,
visual angle
Medical definitions for visual acuity
visual acuity
n.
Sharpness of vision, especially as tested with a Snellen chart. Normal visual acuity based on the Snellen chart is 20/20.