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 The shorter a dog's head, the more similar their visual acuity is to human vision. Jennifer Ouellette, Ars Technica, 21 Dec. 2023 The optimal formula of the supplement helps to restore visual acuity. Discover Magazine, 30 June 2023 But that doesn’t matter too much in person, because 60 ppd is not far off the visual acuity of the average person’s vision. Andrew Williams, WIRED, 4 Feb. 2024 Selective breeding of dogs has produced breeds with different visual capacities, so another aspect of the study involved measuring the length of a dog's head, which prior research has shown is correlated with visual acuity. Jennifer Ouellette, Ars Technica, 21 Dec. 2023 Of course, visual acuity doesn’t tell the whole story of animal vision. Cody Cottier, Discover Magazine, 6 June 2018 Melanin content influences certain bodily functions such as visual acuity or skin resilience to sun damage, but the pathology diagnosed in albinism is not primarily focused on the vision problems that are likely to occur in many instances of albinism or in the vulnerability to sun damage. Thando Hopa, Allure, 23 Aug. 2021 Accomplishing such a task requires a high degree of visual acuity, making archerfish a good candidate to test facial recognition in species lacking a neocortex. Nathaniel Scharping, Discover Magazine, 7 June 2016 While no one in the study has fully regained sight, quite a few of them, like Macdonald, have experienced improvements in their visual acuity. Linda Marsa, Discover Magazine, 2 Jan. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'visual acuity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1889, in the meaning defined above

Time Traveler
The first known use of visual acuity was in 1889

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 18 Apr. 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

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