visual acuity

noun

: the relative ability of the visual organ to resolve detail that is usually expressed as the reciprocal of the minimum angular separation in minutes of two lines just resolvable as separate and that forms in the average human eye an angle of one minute

Examples of visual acuity in a Sentence

Recent Examples on the Web
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The volunteers started off with an average visual acuity of 20/450. Emily Mullin, WIRED, 25 Oct. 2024 Loss of acuity: People lose visual acuity—the ability to see details near or far away—and may have blurry vision. Mark Gurarie, Health, 3 Oct. 2024 The exam includes visual acuity tests that evaluate how each eye can see (e.g., reading charts) and a refraction test. Lindsay Curtis, Health, 18 Aug. 2024 Your healthcare provider will evaluate your symptoms with an eye examination, which includes a visual acuity test and testing of your eye muscles. Troy Bedinghaus, Od, Verywell Health, 1 June 2024 See all Example Sentences for visual acuity 

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of visual acuity was in 1866

Dictionary Entries Near visual acuity

Cite this Entry

“Visual acuity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/visual%20acuity. Accessed 21 Nov. 2024.

Medical Definition

visual acuity

noun
: the relative ability of the visual organ to resolve detail that is usually expressed as the reciprocal of the minimum angular separation in minutes of two lines just resolvable as separate and that forms in the average human eye an angle of one minute compare minimum separable, minimum visible

More from Merriam-Webster on visual acuity

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