write a use of bifocal lens answer
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it is used to cure presbyopia
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Answer:
A Bifocal lens is used to make lenses for people suffering from Presbyopia.
A Presbyopic person is usually an old age person who is sometimes suffering from both short and long sightedness. They'd require bifocal lenses
The lower part is a convex lens that facilitates near vision while the upper part is a concave lens which facilitates far vision.
Hope this helps!
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