scotopic vision

(redirected from rod vision)
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Related to rod vision: Cone cells

scotopic vision

[skə′täp·ik ′vizh·ən]
(physiology)
Vision that is due to the activity of the rods of the retina only; it is the type of vision that occurs at very low levels of illumination, and it can detect differences of brightness but not of hue. Also known as night vision.