Canadian Medical Guide > Biological Sciences > Musculoskeletal, Neural, and Ocular Physiology > Ocular Physiology > Ocular Physiologic Processes > Adaptation, Ocular Terms and Definitions

Adaptation, Ocular

Medical Definition:	The adjustment of the eye to variations in the intensity of light. Light adaptation is the adjustment of the eye when the light threshold is increased; DARK ADAPTATION when the light is greatly reduced. (From Cline et al., Dictionary of Visual Science, 4th ed)
Guide Notes:	adjustment of eye to variations in intensity of light; do not confuse with ACCOMMODATION, OCULAR, adjustment of lens to distance
Also Called:	Light Adaptation

Adaptation, Ocular Categories.

Dark Adaptation - Adjustment of the eyes under conditions of low light. The sensitivity of the eye to light is increased during dark adaptation.

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