visual acuity

noun

Definition of visual acuity

: 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

Pumpkin is packed with beta-carotene, the precursor to vitamin A — an important antioxidant for visual acuity and skin integrity — as well as vitamins C and E, also important antioxidants for repairing your body’s cells from damage. Jaclyn London, Ms, Rd, Cdn, Good Housekeeping, "The Best Pumpkin Health Benefits Every Fall Lover Needs to Know About," 14 June 2019 Leonardo’s visual acuity was driven by his abiding faith in nature’s design, whether a tree root or a hippopotamus. Claudia Kalb, National Geographic, "Why Leonardo da Vinci’s brilliance endures, 500 years after his death," 12 June 2019 In studies, more than 90 percent of participants reported that their visual acuity was maintained or improved a year later. Caren Chesler, Popular Mechanics, "A Vision Quest," 6 Mar. 2019 As in automated warehouses the world over, humans do only the jobs that machines can’t—either knowledge work like managing the overall system or physical tasks that require a combination of delicacy, speed and visual acuity. Christopher Mims, WSJ, "This Thriving City—and Many Others—Could Soon Be Disrupted by Robots," 9 Feb. 2019 Scientists quantify visual acuity in cycles per degree, or the number of black-and-white parallel lines an animal can identify in one degree of their field of vision. Meilan Solly, Smithsonian, "How Does Your Vision Compare to Other Critters in the Animal Kingdom?," 7 June 2018 The accompanying visual acuity guards against attack from the squids’ most infamous predator, the sperm whale, which the squid can spot from almost 400 feet away—a distance long enough to qualify as a par-three golf hole. Katherine J. Wu, Smithsonian, "Operation Calamari: How the Smithsonian Got Its Giant Squids," 21 June 2018 Then again, my senses are heightened, my visual acuity second to none, and my current rate of inflated self-importance frankly unsustainable. Kimberly Harrington, The Cut, "Behold, I Am a New Parent," 1 June 2018 Macular degeneration of the retina results in a loss of visual acuity and field of view. Bruce Henderson, charlotteobserver, "Older drivers are linked to fatal crashes. Is 10 years too long between DMV eye exams? | Charlotte Observer," 16 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'visual acuity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of visual acuity

1889, in the meaning defined above

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The first known use of visual acuity was in 1889

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More Definitions for visual acuity

visual acuity

noun

Medical Definition of visual acuity

: 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

Britannica.com: Encyclopedia article about visual acuity

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