light adaptation

light adaptation

noun Ophthalmology.
the reflex adaptation of the eye to bright light, consisting of an increase in the number of functioning cones, accompanied by a decrease in the number of functioning rods (opposed to dark adaptation ).

Origin:
1895–1900

light-adapted, adjective
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American Heritage
Medical Dictionary

light adaptation n.
The adjustment of the eye under increased illumination, in which the sensitivity to light is reduced. Also called photopic adaptation.

The American Heritage® Stedman's Medical Dictionary
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