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What are multifocal/progressive lenses?

April 26, 2017lenses multifocal progressive

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What are multifocal/progressive lenses?

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Multifocals (or graduated or progressive lenses) contain three power areas: the top portion of the lens for distance vision, the central portion for intermediate vision (such as for computer use) and the lower portion for reading. The powers gradually change down the lens, so that there are no visible markings on the lens. Multifocals correct vision at all normal distances and can provide the most convenient and natural vision of all lens types.