Photopic
A condition of “light adaptation” that is used in retinal testing such as the electroretinogram. Light adaptation is accomplished by exposing a patients eyes to diffuse light of moderate intensity several minutes. This can be useful for determining the health of “cones,” the fine detail and color perceiving cells in the retina.
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Dark Adaptation And Preserving Night Vision (MikeOut E3)

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scotopic and photocopic vision (and how we see at night) - ok science
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Dark Adaptation And Preserving Night Vision (MikeOut E3)
-
5. Photopic/Scotopic Effect
-
3. Scotopic ommatidium
-
scotopic and photocopic vision (and how we see at night) - ok science