Cornea - he clear layer over the front of the eye that helps to focus light, Iris - a muscle that can expand and contract to control the amount of light that enters the eye., Pupil - the black hole in the centre of the eye that allows light into they eye., Ciliary Muscle - changes the shape of the lens to help focus on near and far objects., Lens - focuses the light so that it forms an image onto the back of the eye., Retina - a layer of light sensitive cells at the back of the eye made up of rod and cone cells., Fovea - a tiny area of the eye, packed with cone cell that allow us to see focused images, Blind spot - has very few light sensitive cells and is about the size of a pin head., Optic Nerve - transmits messages from the retina to the brain.,

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