Sclera - the white outer layer of the eyeball, Iris - the coloured part of the eye that surrounds the pupil, Cornea - the transparent part of the eye that covers the iris and the pupil, Pupil - the round opening in the canter of the iris, Lens - focus light rays on the back of the eyeball, Ciliary muscle - change the shape and thickness of the lens, Retina - takes the light the eye receives and changes it into nerve signals,

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