Rods and cones in the retina

Rods and cones in the retina

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Credit: RALPH C. EAGLE JR./SCIENCE PHOTO LIBRARY

Caption: Color enhanced scanning electron micrograph (SEM) of rods and cones in the human retina. The retina is the back part of the eye that contains rods and cones, photoreceptor cells that respond to light and color. The rods are sensitive to changes in light, shape, and movement. In a dim room, we use mainly our rods. The cones are not as sensitive to light as the rods but are sensitive to one of three different colors (green, red or blue). Signals from the cones are translated by the brain into the perception of color.

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Keywords: color, color perception, color receptor, color receptors, colors, cones, eye, eyes, eyesight rods and cones in the retina, human retina, magnification, micrograph, micrographs, micrography, normal color vision, normal vision, perceptual sensitivity, person, photoreceptor cell, photoreceptor cells, retina, rods, rods and cones, scanning electron micrograph, scanning electron micrographs, sem, vision

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