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I found so many old people love to buy bifocal glasses, what is the advantage of bifocal lenses, please?
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5 Lastest Threads by Abby Eyeglasses
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| Thread | Forum | Last Poster | Replies | Views | Last Post |
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Bifocal Lenses | Daniel Glasses | 1 | 666 | 10-30-2009 08:14 PM |
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advantage of Bi-focal lens, it contain two prescriptions, the top part of the lens will be used for your distance vision and the bottom part will be used for reading, there is a line separating distance and reading sections.
The reading section is in the shape of a D on it’s side, the bifocal has a flat top and a curved bottom. |
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