from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The condition of perfect vision, where images are correctly brought to a focus on the retina.
from the GNU version of the Collaborative International Dictionary of English
- n. 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.
from The Century Dictionary and Cyclopedia
- n. Normal power of accommodation, in which the light from a luminous point at any distance from the eye not less than 10 or 12 centimeters (3.9 or 4.7 inches) can be focused to a point on the retina. Also emmetropy.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
Report this comment to the moderators emmetropia Writes:
William Boothe Dallas diplopia - Double vision or seeing double usually with both eyes open as in binocular diplopia, but can be with only one eye as in monocular diplopia. emmetropia - Perfect distance vision without the need of glasses. endophthalmitis - An inflammation within the eye.
Abbreviations 6 to 10 emmetropia = EM exotropia = XT