the cornea, the lens, and the retina. The cornea is a tough, transparent, dome-shaped tissue that covers the front of the eye (not to be confused with the white, opaque sclera). The cornea lies in front of the iris
many say the pupil is the most imprtant part of the eye but it is actually the retina the part in the back of your eye.
focusing lens of the eye....
The optic nerve
The most imortant part of the eye that changes the direction of light is the LENS, though the cornea does do a little of the inital focusing.
The majority of focusing in the eye occurs in the cornea and the lens. The cornea provides most of the focusing power, while the lens fine-tunes the focus to help with near and far vision.
The lens does the lessor part, the cornea does the greater part.
The focusing lens of the camera
The cornea is the part of the eye that causes the greatest bending of light rays as they enter the eye. It is responsible for about two-thirds of the eye's total focusing power.
The eye is the part with out the most trouble on the eye wall is the worst
The cornea, which is the transparent outer covering of the eye, acts as a convex lens by focusing light onto the retina.
The uvea is located in the middle layer of the eye, beneath the white outer sclera and the inner retina. It includes the iris, ciliary body, and choroid, which are all important for regulating light entering the eye, focusing vision, and providing nourishment to the eye's structures.
The lens. However, the human lens is flexible. Focusing is accomplished by tensing or relaxing the muscles surrounding the lens, changing its shape and therefore the focus. Camera lenses are inflexible, so focusing is accomplished by moving the lens closer or further from the film plane.The light rays first pass through the clear front part of the eye called the CORNEA. The light then passes through the PUPIL, which is an opening created by the IRIS or colored part of the eye. Next, the light passes through the LENS and finally arrives at the RETINA.So the part of the eye most oike the lens of a camera is the LENS. It's not the IRIS; that controls the size of the opening that the light comes though.