2.86 Structure and Function of the eye

The eyes respond to light rays and they give us our sense of sight.

• Each eye lies in a socket in the skull - it is moved by the action of 3 pairs of eye muscles ( Circular, Radiel and Ciliary muscle) 
• At the front of the eye is the cornea where the light enters from here. 
• It then passes through the pupil which is surrounded by the iris and through the lens and is focused on the retina.