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dark adaptation

Line breaks: dark adap|ta¦tion

Definition of dark adaptation in English:

noun

[mass noun]
The adjustment of the eye to low light intensities, involving reflex dilation of the pupil and activation of the rod cells in preference to the cone cells.
Example sentences
  • The study recorded oscillatory potentials in seven patients with type 2 diabetes and eight age-matched control subjects during oxygen inhalation after dark adaptation.
  • This important observation suggests that rhabdomeric sGC expression is a fundamental property of locust photoreceptor cells, perhaps linked to photoreceptor dark adaptation in both kinds of eye.
  • Several studies demonstrated depressed critical flicker frequencies, reduced sensitivity to light during dark adaptation, shorter visualevoked response and isolated occipital disinhibition upon eye closure.

Derivatives

dark-adapted

1
adjective
Example sentences
  • Bleaching of rhodopsin in an isolated dark-adapted frog rod photoreceptor leads to the gradual increase in fluorescence in the outer segment, similar to what has been observed in salamander rods.
  • The temporal resolutions of the dark-adapted photoreceptors of several species of mesopelagic crustaceans have been described in earlier studies.
  • Conformational possibilities of flexible loops in rhodopsin, a prototypical G-protein-coupled receptor, were studied by modeling both in the dark-adapted and activated (R *) states.

Definition of dark adaptation in:

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