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Cheap ray bans Sunglasses See when an object, the brain how does it work? Although the amount of Cheap ray bans Sunglasses existing knowledge about the visual system is very large, has had visual psychology, visual physiology and visual disciplines of molecular and cell biology, but how to see things really have not Cheap ray bans Sunglasses clear idea of the visual process is still the lack of a clear, scientific understanding. You may see things on their own how to have a rough idea. Consider each eye such as a miniature television camera, the external scene is focused onto the retina of the eye of a particular screen, each with numerous retinal photoreceptors, photons entering the eye response.
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