When you see sopmething, All you are really seeing is light reflecting into your eye to create a picture. The process is very complex.
First, the light is reflected into your eye and passes through the cornea and the lens, which combine to produce a clear picture of the visual world on the retina. Like a camera, the picture on the retina is reversed, meaning that anything below the ceter mark is actually above the ceter mark on the retina and vise versa. The picture, at this point, is in the form of a electrical signals and is sent to the brain using the optic nerve. The brain processes the image transform it from eectrical signal to a picture, and allows us to see it.
First, the light is reflected into your eye and passes through the cornea and the lens, which combine to produce a clear picture of the visual world on the retina. Like a camera, the picture on the retina is reversed, meaning that anything below the ceter mark is actually above the ceter mark on the retina and vise versa. The picture, at this point, is in the form of a electrical signals and is sent to the brain using the optic nerve. The brain processes the image transform it from eectrical signal to a picture, and allows us to see it.