what is retina?what are its uses?
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Retina is the surface of eye ball where all rays meet after converging from eye lens.this retina is connected to brain by optical nerve .The image formed by retina is inverted and it is the function of brain to interpret the image via optical nerve.
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when light enters your eyes and you see,the black dot inside your eye is called lens. so when lens focuses light on the back of the eye in a layer that is retina.It is inside the eye.The retina contains several nerve cells and the sensation felt by the nerve cell are then transmitted to the brain through the optic nerve.
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