Answers

2016-03-02T18:33:39+05:30
The defect is called presbyopia  it is old age hypermetropia..
it can be corrected by using convex lens
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2016-03-02T18:38:55+05:30
The defect is presbyopia
the person cannot see nearby as well as far objects clearly
it can be corrected by using bifocal lenses
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