the normal refractive condition of the eye, in which the rays of light are accurately focused on the retina.
Origin of emmetropia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the normal condition of perfect vision, in which parallel light rays are focused on the retina without the need for accommodation
Word Origin for emmetropia
C19: from New Latin, from Greek emmetros in due measure + -opia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.