emmetropia
type: Concept
broader: visual acuity

visual acuity
definition: Visual acuity is a measure of the keenness of sight. It has been studied, measured, and analyzed for thousands of years because it represents a fundamental limit in our ability to see. [Source: Encyclopedia of Perception; Visual Acuity]
narrower: emmetropia
narrower: contrast sensitivity
broader: visual perception
broader: vision tests
type: Concept

visual perception
type: Concept
narrower: visual acuity

contrast sensitivity
type: Concept
broader: visual acuity

vision tests
type: Concept
narrower: visual acuity

concepts
type: Collection
type: ConceptGroup
member: visual acuity