Word Study
emmetropia
CIDE DICTIONARY
emmetropia, n. [NL., fr. Gr. 'e`mmetros in measure, proportioned, suitable ('en in + me`tron measure) + 'w`ps, 'wpo`s, eye.].
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]
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