'Emmetropia' definitions:

Definition of 'emmetropia'

(from WordNet)
noun
(ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina

Definition of 'Emmetropia'

From: GCIDE
  • Emmetropia \Em`me*tro"pi*a\ ([e^]m"m[-e]*tr[=o]"p[i^]*[.a]), n. [NL., fr. Gr. 'e`mmetros in measure, proportioned, suitable ('en in + me`tron measure) + 'w`ps, 'wpo`s, eye.] (Med.) That refractive condition of the eye in which the rays of light are all brought accurately and without undue effort to a focus upon the retina; -- opposed to hypermetropia, myopia, and astigmatism. [1913 Webster]