visual acuity

[ˈvɪʒuəl əˈkjuːɪti]
noun
acuidade visual
1. The clarity or sharpness of vision; the ability to distinguish fine details and see objects clearly at various distances
The patient's visual acuity improved after the corrective surgery.
A acuidade visual do paciente melhorou após a cirurgia corretiva.
2. A measure of how well the eye can distinguish between details, typically expressed as a ratio such as 20/20
His visual acuity is 20/20, which is considered normal vision.
Sua acuidade visual é 20/20, o que é considerado visão normal.
3. The sharpness or clarity of sight in terms of the ability to recognize shapes and forms
Regular eye examinations help monitor changes in visual acuity over time.
Exames oftalmológicos regulares ajudam a monitorar mudanças na acuidade visual ao longo do tempo.
In both Brazilian and American healthcare systems, visual acuity is a standard measurement used during eye exams. The 20/20 notation is universally recognized in English-speaking countries. In Brazil, the metric system may also be used (e.g., 6/6 vision), particularly in more recent medical literature. Regular vision testing is emphasized in both cultures as part of preventive healthcare.
Synonyms / Sinônimos
visual clarityeyesight sharpnessclarity of visionvisual precision
Antonyms / Antônimos
blurred visionvisual impairmentpoor eyesightmyopia

Regional Variations

General Brazilian
acuidade visual
Most common usage in medical and optometric contexts
Rio de Janeiro
acuidade visual
Standard medical terminology used in hospitals and clinics
São Paulo
acuidade visual
Used in medical professionals and eye care facilities
Portugal
acuidade visual
Same term used; sometimes found as 'nitidez visual' in informal contexts

Related Words

visioneyesightrefractionophthalmologyoptometrymyopiahyperopiaastigmatism

Related Idioms & Phrases

20/20 vision
sharp as an eagle's eye
clear-eyed
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