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CBSE Class 10 Answered

When a person is suffering from both myopia and hypermetropia, then what type of correction lenses are required?
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
answered-by-expert Expert Answer

A bi-focal lens is required for this defect. It is also known as Presbyopia. This defect is common in old age.

Answered by | 04 Jun, 2014, 15:23: PM

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