17-1142

scotopic vision

vision by the normal eye in which rods are the principle active photoreceptors

NOTE 1 Scotopic vision normally occurs when the eye is adapted to levels of luminance of less than ~10-3 cd·m-2.

NOTE 2 In comparison to photopic vision, scotopic vision is characterized by the lack of colour perception and by a shift of the visual sensitivity towards shorter wavelengths.

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