Bifocals for aged people!
As the age grows, our vision may get worse, especially the near vision, you found you have difficulty in reading magazine, or you even need to stretch your arms to the limit to read morning newspapers, at this situation, we need a pair of bifocal eyeglasses, there are two focal points in bifocal a lens, on for far, and one for near, bifocal eyeglass can solve the far and near sight problem, many guys may find that these eyeglasses are easy to be adjusted, but there is an obvious borderline on the lenses, which bring some little uncomfortable, but not causing much trouble!
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