pupil - The part where the light enters, cornea - The transparent layer at the front of the eye, iris - The coloured part of the eye. It controls the size of the pupil, retina - The part of the eye that contains the receptor cells, optic nerve - It connects the eye to the brain, eyelashes - Little hairs that protect the eye from dust and direct sunlight, eyebrows - They protect the eye from sweat and rain, eyelids - They open and close to protect the eye, tears - The liquid that protects, lubricates and cleans the eye, lens - It focuses the light on the retina,

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