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

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

From Science Daily • Feb. 8, 2024

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 • Dec. 13, 2023

Each team’s four field players must be visually impaired, meaning they are completely blind or have very low visual acuity or no light perception.

From Los Angeles Times • Jul. 9, 2023

He had taken a blind person on a similar trip once before - but, because every non-sighted person has varying levels of visual acuity, we still needed to get to know each other.

From BBC • Nov. 4, 2022

Even if they’re looking at the road, he’d found, their visual acuity was impaired by the cognitive demand of the phone.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel