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The retina is a curtain of cells that line the back of the eye. It is made up of special light sensitive cells called rods and cones. Light enters the eyes and passes through the lens which focuses the light on to the retina. The light causes electrochemical changes in the retinal cells leading to stimulation of the nerve cells supplying the retina. These nerve cells via the optic nerve carry the visual information to the brain that allows us to see an image. The retina contains the retinal pigment epithelium (RPE), the rods and cone cells and an inner lining Bruch's membrane.
The macula is the small part or spot that lies near the centre of the retina. The macula is where the vision is focused and is the best point of vision. The central.
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