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Different kinds of light sensitive organs are found in a variety of organisms. The simplest eyes do nothing but detect whether the surroundings are light or dark, while more complex eyes can distinguish shapes and colors. The visual fields of some such complex eyes largely overlap, to allow better depth perception, as in humans; and others are placed so as to minimize the overlap, such as in rabbits and chameleons.
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Further, synaptic convergence means that several rod cells are connected to a single bipolar cell. The fovea, directly behind the lens, consists, READ ON...
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The maximum resolution of the human eye in good light is approximately 1.In many countries, stuffed cow's eyes are considered a delicacy.[14] The cornea and lens help to converge light rays to focus onto the retina. They do have photosensitive cells, but no lens and no other means of projecting an image onto these cells.25 line per minute of arc. They both contain different pigmented photoreceptor proteins.Eyes are organs of vision that detect light. [edit] Anterior and posterior
The eyes of cephalopods, fish, amphibians, and snakes usually have fixed lens shapes, and focusing vision is achieved by telescoping the lens—similar to how a camera focuses. Microsaccades move the eye no more than a few degrees in the middle of the retina, the products of which trigger nerve impulses which travel to the brain. Some aquatic animals have a second eyelid in each eye which refracts the light
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