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1.Pupil Opens and closes in order to regulate and control the amount of light
2.Iris Controls light level similar to the aperture of a camera
3.Sclera Protective outer coat
4.Cornea Thin membrane which provides 67% of the eye’s focusing power
5.Crystalline lens Helps to focus light into the retina
6.Conjunctiva Covers the outer surface (visible part) of the eye
7.Aqueous humour Provides power to the cornea
8.Vitreous humour Provides the eye its form and shape
9.Retina Captures the light rays focussed by the lens and sends impulses to the brain via optic nerve
10.Optic nerve Transmits electrical signals to the brain
11.Ciliary muscles Contracts and extends in order to change the lens shape for focusing.