Iris - Coloured part of the eye, Tear duct - Drains the tears that keep the eye moist and clean, Pupil - Dark opening in the iris which allows light to enter the eye, Optic nerve - Carries electrical signals to the brain, Lens muscle - Makes the lens thick or thinner, Eye lid - Protects the eye and spreads tears to keep the eye moist and clean, Lens - Focuses on the object by getting thicker or thinner, Cornea - Part of the clear , moist outer covering of the eye that covers the iris and pupil, Sclera - White part of the eye, Retina - The inside lining of the back of the eye that changes light aves into electrical signals, Anterior chamber - Small space between the cornea and iris, Jelly - Clear substance that supports the shape of the eye,

Functions of the eye

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