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Is there any differances between perscription bifocals ,and nonperscription magnifying glasses?

by Guest58699  |  earlier

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Is there any differances between perscription bifocals ,and nonperscription magnifying glasses

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  1. multiple differences:

    placement of the optical center, astigmatism correction, lens material, curvature of the lens, multiple focal lengths, many more

    bifocals are much more "custom" made.

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