less than 1 minute read


Visual Acuity

Visual acuity, keenness of sight and the ability to distinguish small objects, develops rapidly in infants between the age of three and six months and decreases rapidly as people approach middle age. Good visual acuity is often called 20/20 vision. Optometrists test visual acuity when we have our eyes examined, and poor acuity is often correctable with glasses or contact lenses. As with every other aspect of vision, visual acuity is highly complex, and is influenced by many factors.

Additional topics

Science EncyclopediaScience & Philosophy: Verbena Family (Verbenaceae) - Tropical Hardwoods In The Verbena Family to WelfarismVision - Our 3-d View Of The World, Ocular Dominance, Memory, Electrochemical Messengers, Color Vision - Optic pathway, Visual field, Accommodation, Common visual problems, Amblyopia, Other common visual problems