What Process light goes through as it enters the eye travels to the brain?

When illumine enters the eyeball it first enters with your cornea, the transp bent protective coating oer your eye. Next it leave behind pass through the pupil which is the minor opening in the middle of your iris, or colored offset of your eye. The muscles in the iris help to protect the eye by expanding and contacting based on the brightness of the motiveless in your surroundings helping you see much clearer in bright and cutting stir up. In side the pupil the light will then move through the genus Lens which instructiones the light and displays and mental picture onto the retina, the light-sensitive inner lining of the back of the eyeball. The crystalline lens of the eye is what enables us to digest on images up close, middle invest, and last(a) away. Normally the lens is focused on middle send objects, but when you would want to see something far away or up close the muscles around the lens help with that. To focus on something far away the muscles wo rk to flatten the lens and then to focus on something up close the muscles recess to make the lens as round as possible. On the retina directly behind the lens there is a mislead spot called the fovea. This is the center of your visual field and this is where images are in the most focus.

There is also another spot on your retina in which you see nothing this is called your blind spot. On your retina are these receptor cells responsible for vision and they are your rods and cones. The rods respond to uncertain degrees of light and dark, but not to colors, mostly provide your iniquity vision. The cones allow us to see color as well up as light and dark, but they primari! ly operate in daytime as they are less sensitive... If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay