Difference between revisions of Emmetropia
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
{{For|corrective lenses used to get someone to 20/20 vision|20/20 correction}} | {{For|corrective lenses used to get someone to 20/20 vision|20/20 correction}} | ||
'''Emmetropia''' is the state in which an eye is neither [[nearsighted]] nor [[farsighted]]. An eye is said to be emmetropic when the image of an object at infinity (parallel light rays) forms on the [[retina]], rather than in front of or behind it, implying it is free of [[astigmatism]]. | '''Emmetropia''' is the state in which an eye is neither [[nearsighted]] nor [[farsighted]] nor [[astigmatism|astigmatic]]. An eye is said to be emmetropic when the image of an object at infinity (parallel light rays) forms on the [[retina]], rather than in front of or behind it, implying it is free of [[astigmatism]]. | ||
Babies are born [[farsighted]], and become emmetropic over time after birth through [[axial elongation]] during emmetropization. | Babies are born [[farsighted]], and become emmetropic over time after birth through [[axial elongation]] during emmetropization. | ||
Revision as of 18:45, 9 February 2022
Emmetropia is the state in which an eye is neither nearsighted nor farsighted nor astigmatic. An eye is said to be emmetropic when the image of an object at infinity (parallel light rays) forms on the retina, rather than in front of or behind it, implying it is free of astigmatism.
Babies are born farsighted, and become emmetropic over time after birth through axial elongation during emmetropization.