Parts of the Eye 0.0 / 5 ? BiologyCells, tissues and organsNervous system, hormones and behaviourGCSEAll boards Created by: S.mirzanCreated on: 20-11-17 19:25 What does the cornea do? Control and focuses the entry of light. 1 of 7 What does the pupil do? Light enters through it. 2 of 7 What does the iris do? Regulates the amount of light by controlling the size of the pupil. 3 of 7 What does the retina do? Retina converts incident light energy into signals that are carried to the brain by the optic nerve. 4 of 7 What is the optic nerve? Transmits impulses to the brain from the retina at the back of the eye. 5 of 7 What happens if an object is at a distance? The ciliary muscle relaxes and becomes thinner. 6 of 7 What happens if an object is near? Ciliary muscle contracts and becomes fatter so it can focus. 7 of 7
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