How Vision Works?

Vision is a wondrous part of life and although simple at first glance, (pun intended,) there are several complex factors that allow vision to work. First off, the eye has six main muscles that enables it to move in different directions, picking up all light. When the light first enters our eyes, it passes through the cornea, eventually reaching the retina, and on to the rods and cones. The cone contains a photosensitive chemical called Rhodopsin, and once this chemical is activated, it creates an electrical impulse that sends a signal to the brain. The brain in turn, processes the image, and voila, we have sight!You can find more information here: