Synonym for emmetropia ... <ophthalmology> 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. ... Origin: NL, fr. Gr. In measure, proportioned, suitable (in + measure) +, eye. ... Source: Websters Dict... Found on http://www.encyclo.co.uk/local/20973