visual acuity
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English
Etymology
Noun
visual acuity (countable and uncountable, plural visual acuities)
- The sharpness of vision or sight.
- 1899, “Progress of medicine”, in The Memphis Lancet, page 216:
- 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.
- Strength of vision expressed on some definite scale.
- 1896, Annales d'Oculistique, English edition, page 307:
- 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.