optical acuity

[/ˈɑːptɪkəl əˈkjuːɪti/]
noun
acuidade visual
1. The clarity or sharpness of vision; the ability of the eye to perceive fine details and distinguish between objects at a distance
The pilot's optical acuity was tested before being cleared to fly commercial aircraft.
A acuidade visual do piloto foi testada antes de ser autorizado a pilotar uma aeronave comercial.
2. A measure of visual performance, typically expressed in terms like 20/20 vision
Athletes often have better optical acuity than the general population.
Os atletas frequentemente têm melhor acuidade visual do que a população geral.
In Brazil, 'acuidade visual' is the standard medical term used during eye exams (exame oftalmológico). The concept is particularly important in occupational contexts such as military and aviation screening. In the USA, optical acuity tests are routine during driver's license renewals and medical check-ups.
Synonyms / Sinônimos
visual acuityvision sharpnessclarity of visionvisual perception
Antonyms / Antônimos
myopiablurred visionvisual impairment

Regional Variations

General Brazilian
acuidade visual
Standard medical and everyday usage
São Paulo
acuidade visual
Medical professionals use the formal term consistently
Portugal
acuidade visual
Same term used in European Portuguese medical contexts
Rio de Janeiro
acuidade visual
Colloquially may be shortened to 'acuidade' in casual conversation

Related Words

visioneyesightrefractionophthalmologyoptometryvisual perceptionocular health

Related Idioms & Phrases

20/20 vision
eagle eye
sharp as a hawk
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