Physics, asked by yash0kumar, 1 year ago

what is the function of bio focal lens

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Answered by Anonymous

4

➡Multifocal eyeglass lenses contain two or more lens powers to help you see objects at all distances after you lose the ability to naturally change the focus of your eyes due to age (presbyopia). Flat-top bifocal lens (also called a D-seg or straight-top). Executive bifocal lens (also called the Franklin bifocal).

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