emmetropia

Definitions

  • WordNet 3.6
    • n emmetropia (ophthalmology) the normal refractive condition of the eye in which there is clear focus of light on the retina
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Webster's Revised Unabridged Dictionary
    • n Emmetropia (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, and astigmatism.
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Century Dictionary and Cyclopedia
    • n emmetropia 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.
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Chambers's Twentieth Century Dictionary
    • n Emmetropia em-e-trō′pi-a the normal condition of the refractive media of the eye
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Etymology

Webster's Revised Unabridged Dictionary
NL., fr. Gr. 'e`mmetros in measure, proportioned, suitable ('en in + me`tron measure) + 'w`ps 'wpo`s, eye
Chambers's Twentieth Century Dictionary
Gr., en, in, metron, measure, ōps, the eye.

Usage

In literature:

Those cases deserve particular mention, in which it remained doubtful whether hypermetropia of slight degree or emmetropia was present.
"Schweigger on Squint" by C. Schweigger
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