1-Consciousness-Sense-Vision-Physiology-Dark Adaptation
duplex vision
Rods and cones {duplex vision} operate in different light conditions.
photopic system
Vision has systems {photopic system} for daylight conditions.
scotopic system
Vision has systems {scotopic system} for dark or nighttime conditions.
mesopic vision
Seeing at dusk {mesopic vision, dark} {twilight vision} is more difficult and dangerous.
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Date Modified: 2022.0225