When light goes through the eye, the first thing it hits is the outer layer called the cornea. This outer layer protects the eye and it is the part that you can touch. Next, a controlled amount of the light passes through the pupil, or small black hole in the center of the iris. The iris controls how much light is allowed through the pupil
The next thing it hits is the lens, which refracts it toward the retina. The retina has two types of cells, cone and rod cells, which receive the light and create electric impulses from it. These electric impulses get sent to the brain via the optic nerve. Finally the brain forms an image which is the image that we see. This is what really happens with the eye, and is the complicated process of how we can see.
The next thing it hits is the lens, which refracts it toward the retina. The retina has two types of cells, cone and rod cells, which receive the light and create electric impulses from it. These electric impulses get sent to the brain via the optic nerve. Finally the brain forms an image which is the image that we see. This is what really happens with the eye, and is the complicated process of how we can see.
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