visual acuity

noun

The sharpness of vision or sight.

Similar
acuitysharp-sightedness
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Meanings

nounvisual acuity (countable and uncountable, plural visual acuities)

plural visual acuities

  1. countableuncountableThe sharpness of vision or sight.

    The Italian railroads require of their employes both eyes normal in regard to visual acuity, ocular refraction, perception of red and green, and visual field.

    1899, “Progress of medicine”, in The Memphis Lancet, page 216
  2. countableuncountableStrength of vision expressed on some definite scale.

    Myopia exceeding 6 D., provided the visual acuity exceed 1/4 for one of the eyes and 1/16 for the other, and there be no extended choroidal lesions.

    1896, Annales d'Oculistique, English edition, page 307

Synonyms & antonyms

nounsharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)

Similar
acuitysharp-sightedness
Broader
sightvisionvisual sense
Also see
acuitysharp-sightedness

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From visual + acuity.

Full word history & related roots →

Translations

Spanish acuidad/agudez/agudeza visual
  • acuidad/agudez/agudeza visualTranslations
Cite this entry
APA

visual acuity. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/visual%20acuity

MLA

“visual acuity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/visual%20acuity. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “visual acuity,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/visual%20acuity.

Source: visual acuity on Wiktionary, CC BY-SA 4.0.