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The one of our most precious sense receptors in the human body. While looking at objects light enters the eyeball through the lens of the eye it is focused on the back of the eye wall and rods and cones convert the light into electrical impulses which are sent to the brain to be processed. While looking at distant objects, [...]

Posted on September 15th, 2008 under Anatomy-Physiology. Tags: cataract, cones, eye, eyeball, farsighted, focus, lens, nearsighted, retina, rods. Comments: None