Contrast light and dark adaptation and include the role of the rods and cones.

What will be an ideal response?


Rods respond to low-intensity light that provides night and peripheral vision, while cones are bright-light, high-discrimination receptors that provide color vision. During light adaptation, rods are inactivated and as cones respond to the high-intensity light, high visual acuity results. In dark adaptation, cones do not function (visual acuity decreases) and rod function resumes when sufficient rhodopsin accumulates.

Anatomy & Physiology

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Anatomy & Physiology