Question

the upper part of the bifocal lens contains which lens​

Answer 1

Answer:

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Explanation:

In bifocal lens ,the upper part of lens consist concave (to correct myopia) and lower convex (to correct hypermetropia). concave is used in upper portion of distant vision and convex in lower vision.

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Answer 2

Answer:

Answer. In bifocal lens ,the upper part of lens consist concave (to correct myopia) and lower convex (to correct hypermetropia). concave is used in upper portion of distant vision and convex in lower vision.

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