light adaptation

American  

noun

Ophthalmology.

1. 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).

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Other Word Forms

Derived Forms

• light-adapted
  adjective

Etymology

Origin of light adaptation

First recorded in 1895–1900

Example Sentences

To come now to the sense of sight, we have light adaptation, dark adaptation, and color adaptation.

From Psychology A Study Of Mental Life by Woodworth, Robert S.