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lecture 24--the eye & retina

lecture 24--the eye & retina - Differences between...

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Differences between rods and cones Rods: sensitive--work in low light levels; large diameter to capture as much light as possible; poor image resolution; many rods/ ganglion cell; high density in retinal periphery; low density in fovea (you see better at night by looking “out of the corner of your eye”; single photopigment (no color vision). Cones: insensitive--work in high light levels; small diameter to get good image resolution; single cone/ganglion cell in fovea; high density in fovea; low density elsewhere; 3 photopigments (color vision).
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light light
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Blind spot- region where there Photoreceptors are NOT present
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