write a use of bifocal lens ?
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Answered by
33
Answer:The use of bifocal lens is to correct the defect of both myopia and hypermetropia as the lens consists of both concave and convex lens .
Explanation: The top consists of concave lens and at the bottom convex lens.
Answered by
13
Answer:
Bifocal lenses are used in the spectacles of people suffering from presbyopia, myopia, hyperopia or/and astigmatism.
These have two distinct powers and hence serves two functions. One is distant vision and the other is closeup vision.
The lens is divided into two parts with the topmost portion serving the purpose of distant vision whereas the lower part helping the closeup vision.
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