\Em`me*tro"pi*a\, n. [NL., fr. Gr. ? in measure,
proportioned, suitable (? in + ? measure) + ?, ?, 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,
an astigmatism.