Like any other organism, we all have eyes. The eye is an important organ that detect light, made up of different tissues and light sensitive organs. It is the sense organ responsible for sight.
The simplest eyes do nothing but detect whether the surroundings are light or dark, which is sufficient for vision of the surroundings. However more complex eyes can distinguish shapes and colours. The visual fields of such complex eyes largely overlap, to allow better depth perception (binocular vision), as in humans like you and me; while the eyes of other organisms are placed so as to minimize the overlap, e.g. in rabbits or chameleons.
With more information, you can go to this website which i found to be quite of use.(www.en.wikipedia.org/wiki/Eye)
-Benjamin
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