20/20 vision
Optimal visual acuity
20/20 vision is normal visual acuity—the ability to see clearly at twenty feet what a person with standard eyesight can see at that distance.
The term serves as a baseline for eye exams: The optometrist confirmed I still have 20/20 vision.
Better-than-average acuity would be 20/15; worse might be 20/40.
Figuratively, 20/20 vision suggests perfect clarity or foresight, though the phrase hindsight is 20/20 notes that things are easier to see clearly after they've happened.
- perfectWithout any flaw
- eyesightVisual perception capacity
- clarityState of being understandable
- crystal clearEntirely unambiguous, perfectly understood
- sharpFine-edged, or astute
clear · eagle eye · optometrist · glasses · contacts · corrective lenses · eagle · hawk · acuity · crisp · focus · hindsight · foresight · Barbara Walters · eye chart · chart · eye exam · exam
- vision conditionsnearsightedness, farsightedness, blindness, myopia, hyperopia
- vision typesnearsightedness, nearsighted, farsightedness, farsighted, blind
- ways of seeingdepth perception, focus, acuity, stereopsis
- visionsharp, eye, sight, eyes, blurry
- acuitysharpness, keenness, acuity, mental acuity, mental sharpness
- eye testseye exam, eye chart, eye test, eye tests, ophthalmoscopy
20/20 visionblindness
Absence of vision
legal blindness · poor eyesight · low vision · nearsightedness · farsightedness
20/20 visiontunnel vision
Inability to see periphery
blind spot · shortsightedness · willful blindness · poor judgment · clouded vision