Cornea
Helps light rays focus.
Pupil
Allows light to enter.
Iris
Helps determine how much light enters the eye.
Aqueous Humor
Helps with eye nutrition.
Vitreous Humor
Helps provides the eyeballs shape.
Retina
Allows light rays to be focused
Sclera
Forms the white outer layer of the eyeball.
Ciliary
Helps with the convex ( or lack thereof) of the lens.
Optic Nerve
Carries images through nerve impulses from the retina to the brain.
Lens
Helps focus light rays onto the retina.
Chroroid
Prevents light from being reflected inside the eyes.
Macula Lutea
Gives detailed, clear vision in the retina.