Describe the main parts of the Human eye. Explain its focusing action.
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The eye has many parts that must work together to produce clear vision: The sclera, or white part of the eye, protects the eyeball. The pupil, or black dot at the centre of theeye, is a hole through which light can enter the eye. The iris, or coloured part of the eye, surrounds the pupil.
Explanation:
The human eye is a sense organ adapted to allow vision by reacting to light. The cornea and the crystalline lens are both important for the eye to focus light. ... For the eye, light from distant objects is focused onto the retina at the back of the eye
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