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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Success was primarily judged by how effectively the treatment repaired the cornea’s surface, while a secondary test analyzed improvements to visual acuity. Michael Irving, New Atlas, 8 Mar. 2025 These tests include a visual acuity test, slit-lamp exam, dilated eye exam, and tonometry. Lindsay Curtis, Health, 27 July 2025 Character Development To Transform Culture Building on the analogy of the glasses, the visual acuity associated with character arises through its development, not simply reading about it. Mary Crossan, Forbes.com, 22 May 2025 Humans have much higher visual acuity, between 60 to 100 CPD, per the paper. Margherita Bassi, Smithsonian Magazine, 21 May 2025 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

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Cite this Entry

“Visual acuity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/visual%20acuity. Accessed 19 Aug. 2025.

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

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