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Related to emmetropia: ametropia
The condition of the normal eye when parallel rays of light are focused exactly on the retina and vision is perfect.
[Greek emmetros, well-proportioned, fitting (en, in; see en-2 + metron, measure; see meter2) + -opia.]
em′me·trop′ic (-trŏp′ĭk, -trō′pĭk) adj.
(Physiology) the normal condition of perfect vision, in which parallel light rays are focused on the retina without the need for accommodation
[C19: from New Latin, from Greek emmetros in due measure + -opia]
em•me•tro•pi•a(ˌɛm ɪˈtroʊ pi ə)
the normal refractive condition of the eye in which the rays of light are accurately focused on the retina.
[1860–65; < Greek émmetr(os) in measure, fitting]
em`me•trop′ic (-ˈtrɒp ɪk, -ˈtroʊ pɪk) adj.
the normal refractive function of the eye in which light is focused exactly on the retina with the eye relaxed. — emmetropic, adj.See also: Eyes
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|Noun||1.||emmetropia - (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina|
ophthalmology - the branch of medicine concerned with the eye and its diseases