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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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[6] This gradually changed as the eyespot depressed into a shallow "cup" shape, granting the ability to slightly discriminate, READ ON...
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Different kinds of light-sensitive organs are found in a variety of organisms. When the muscles exert different tensions, a torque is exerted on the globe that causes it to turn. The experience of wide sharp human vision is in fact based on turning the eyes towards the current point of interest in the field of view, the brain thus perceiving an observation of a wide sharp field of view. These are then transmitted to the brain via the optic nerve.Compound eye of
* The nervous tunic, also known as the tunica fibrosa oculi, is the middle vascularized layer which includes the iris, ciliary body, and lens. This is less accurate than the vestibulo-ocular reflex as it requires the brain to process incoming visual information and supply feedback. In this, they differ from most other arthropods, which have soft eyes. Another complication for vision in frontal-eyed
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