| 单词 | light adaptation |
| 释义 | > as lemmaslight adaptation light adaptation n. (a) the process by which the eye adapts to an increased level of light, which involves constriction of the pupil and reduction of the sensitivity of the cones of the retina; the condition of being adapted to such light; cf. dark adaptation n. at dark n. Compounds; (b) (more generally) any of various other physiological changes that occur in a living organism in response to increased light. ΘΚΠ the world > physical sensation > sight and vision > [noun] > light adaptation adaptation1839 light adaptation1897 photopia1915 1897 Proc. Royal Soc. 61 50 In the following experiment the eye was in the condition of light adaptation for strong stimuli. 1962 H. C. Weston Sight, Light & Work (ed. 2) i. 8 Thus, after full light-adaptation, complete dark-adaptation may require about an hour. 1964 Oceanogr. & Marine Biol. 2 352 Prolonged laboratory culture, starvation, and light- or dark-adaptation had relatively little effect on luminescent ability [of a copepod]. 1994 R. H. Kendrick & G. H. M. Kronenberg Photomorphogenesis in Plants (ed. 2) ix. 635 We are still at the early stages of understanding the mechanisms of such light adaptation, which may involve changes in photoreceptor gene expression. 2018 Sun (Nexis) 9 Feb. 29 The rare condition causes the loss of central vision, as well as blind spots, blurriness and light adaptation issues. < as lemmas |
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