Cornea -serve as the ''window'' of the eye
lens   -jelly-like assembly of tiny transparent fibers  its function is to bend light rays that enter      the eye
iris - control the size of the pupil
pupil- allow light to pass into the eyes from the ''AQUEOUS HUMOUR''
ciliary muscle - contracts and expands to control the curvature of the lens
vitreous humour - a cavity behind the lens filled w/ another liquid 
retina - serrve as the screen where  the image is formed (with tiny nerve cell the rods and cones)
fovea centralis - center of the eye;s sharpest vision and the location of most color perception.
optic nerve - pathway that light rays take from the retina to the processing center of the brain

hope it will help :)