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  • What is presbyopia? Write two causes of this defect. Name the type of lens which can be used to correct presbyopia.

What is presbyopia? Write two causes of this defect. Name the type of lens which can be used to correct presbyopia.

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Presbyopia is a defect of vision caused because of loss of power of the accommodation of the eye and the human eye can not see the nearby objects very clearly.

This happens because of old age and gradual weakening of the ciliary muscles and diminishing of the flexibility of the eye lens. 

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Deependra Verma

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