visual acuity

American  

noun

Ophthalmology.

1. 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). V.

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Etymology

Origin of visual acuity

First recorded in 1885–90

Example Sentences

Though some patients could make out patterns immediately, all patients' visual acuity improved over months of training.

From Science Daily

In normally sighted newborns, retinal cone cells are not well-developed at birth, resulting in babies having poor visual acuity and poor color vision.

From Science Daily

Volunteers using the lenses also reported noticeable improvements in visual acuity at a variety of distances and lighting conditions.

From Science Daily

To do this, the team performed a cohort study and looked at the visual acuity of 967 Japanese patients at TDMU's Advanced Clinical Center for Myopia after 3 and 5 years had passed.

From Science Daily

Sighted participants recruited for the study were asked to test and verify the phosphene maps based on visual acuity and object recognition.

From Science Daily