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单词 dark adaptation
释义

Definition of dark adaptation in English:

dark adaptation

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.

    （眼睛的）暗适应

    Example sentencesExamples
    • Following dark adaptation, photoreceptor responses to brief light exposures were recorded.
    • The light emission from this complex and the other compounds in Table 1 is bright enough to be seen easily without dark adaptation of the eye.
    • The dark adaptation threshold was determined by increasing the light intensity of the light bars until the subject perceived the bars and gave the correct answer concerning the direction.
    • Brighter light makes dark adaptation more difficult, which you'll notice when your eyes try to readjust to look outside again.
    • Several studies demonstrated depressed critical flicker frequencies, reduced sensitivity to light during dark adaptation, shorter visualevoked response and isolated occipital disinhibition upon eye closure.
    • It principally manifests itself as an increase of the dark adaptation threshold, nystagmus, and often moderate to high short-sightedness, although the refractive state may be long sighted or normal.
    • 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.
    • The study recorded oscillatory potentials in seven patients with type 2 diabetes and eight age-matched control subjects during oxygen inhalation after dark adaptation.
    • Dark adaptation values for twelve healthy volunteers were measured as the visual threshold after 30 minutes of dark adaptation, before and two hours after intake of BCA (at three dose levels: 50, 25, and 12.5 mg/subject) or placebo.

Derivatives

  • dark-adapted

    • adjectiveˌdɑːkəˈdaptɪdˌdɑrkəˈdæptəd

    • (of the eye) adjusted to low light intensity.

      dark-adapted retinas
      Example sentencesExamples
      • 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.
      • 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.

Definition of dark adaptation in US English:

dark adaptation

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.

    （眼睛的）暗适应

    Example sentencesExamples
    • 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.
    • It principally manifests itself as an increase of the dark adaptation threshold, nystagmus, and often moderate to high short-sightedness, although the refractive state may be long sighted or normal.
    • The study recorded oscillatory potentials in seven patients with type 2 diabetes and eight age-matched control subjects during oxygen inhalation after dark adaptation.
    • The dark adaptation threshold was determined by increasing the light intensity of the light bars until the subject perceived the bars and gave the correct answer concerning the direction.
    • Several studies demonstrated depressed critical flicker frequencies, reduced sensitivity to light during dark adaptation, shorter visualevoked response and isolated occipital disinhibition upon eye closure.
    • Following dark adaptation, photoreceptor responses to brief light exposures were recorded.
    • The light emission from this complex and the other compounds in Table 1 is bright enough to be seen easily without dark adaptation of the eye.
    • Dark adaptation values for twelve healthy volunteers were measured as the visual threshold after 30 minutes of dark adaptation, before and two hours after intake of BCA (at three dose levels: 50, 25, and 12.5 mg/subject) or placebo.
    • Brighter light makes dark adaptation more difficult, which you'll notice when your eyes try to readjust to look outside again.
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更新时间：2025/6/1 7:04:30