Emmetropia
Pronunciation : Em`me*tro"pi*a
Part of Speech : n.
Etymology : [NL., fr. Gr. (Med.)
Definition : Defn: 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, an astigmatism.
Source : Webster's Unabridged Dictionary, 1913