Iris - Controls how much light enters the pupil, Cornea - Transparent lens that refracts light as it enters the eye, Lens - Transparent disc that can change shape to focus light onto the retina, Retina - Contains light receptor cells - rods (detect light intensity) and cones (detect colour), Optic nerve - Sensory neuron that carries impulses between the eye and the brain, Pupil - Hole that allows light to enter the eye, Conjunctiva - A clear membrane that covers the white of the eye and the inside of the eyelids; it lubricates the eye and provides protection from external irritants, Ciliary muscle - A ring of muscle that contracts and relaxes to change the shape of the lens, Suspensory ligaments - Ligaments that connect the ciliary muscle to the lens, Sclera - The strong outer wall of the eyeball that helps to keep the eye in shape and provides a place of attachment for the muscles that move the eye, Fovea - A region of the retina with the highest density of cones where the eye sees particularly good detail, Blind spot - The point at which the optic nerve leaves the eye, where there are no receptor cells,

Eye structure

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