What does dark adaptation mean?
Definitions for dark adaptation
dark adap·ta·tion
This dictionary definitions page includes all the possible meanings, example usage and translations of the word dark adaptation.
Princeton's WordNet
dark adaptationnoun
the process of adjusting the eyes to low levels of illumination; cones adapt first; rods continue to adapt for up to four hours
Wikipedia
dark adaptation
In visual physiology, adaptation is the ability of the retina of the eye to adjust to various levels of light. Natural night vision, or scotopic vision, is the ability to see under low-light conditions. In humans, rod cells are exclusively responsible for night vision as cone cells are only able to function at higher illumination levels. Night vision is of lower quality than day vision because it is limited in resolution and colors cannot be discerned; only shades of gray are seen. In order for humans to transition from day to night vision they must undergo a dark adaptation period of up to two hours in which each eye adjusts from a high to a low luminescence "setting", increasing sensitivity hugely, by many orders of magnitude. This adaptation period is different between rod and cone cells and results from the regeneration of photopigments to increase retinal sensitivity. Light adaptation, in contrast, works very quickly, within seconds.
ChatGPT
dark adaptation
Dark adaptation is the process by which the eyes increase their sensitivity to low levels of light, allowing for improved vision in dark environments. This process involves both physiological and biochemical changes in the rod and cone cells of the retina, specifically, the regeneration of photopigments that absorb light and enable vision in dim conditions. Dark adaptation can take anywhere from 20 minutes to two hours to complete.
U.S. National Library of Medicine
Dark Adaptation
Adjustment of the eyes under conditions of low light. The sensitivity of the eye to light is increased during dark adaptation.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of dark adaptation in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of dark adaptation in Pythagorean Numerology is: 9
Translations for dark adaptation
From our Multilingual Translation Dictionary
- mørk tilpasningNorwegian
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"dark adaptation." Definitions.net. STANDS4 LLC, 2024. Web. 25 Apr. 2024. <https://www.definitions.net/definition/dark+adaptation>.
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