Bifocal reading glasses require the wearer to look up through the distance portion of the lens when focusing on a faraway object. When reading or focusing on something within 18 inches of your eyes, you look down and through the bifocal segment of the lens. One warning: Bifocals require a period of adjustment. Our Standard Progressive Lenses start at $37.95. They offer a comfortable, balanced view and easy adaptation between the 3 viewing zones. Our Premium Progressive Lenses start at $52.95. They offer up to a 40% wider view than our Standard progressive lenses allowing for maximum comfort and quicker adaptation between viewing zones. Traditional Bifocals. The type of bifocals many people first think of have a visible line across the lens, which separates the top and bottom parts. These segments aren't always the same shape. You may find bifocals with near segments that are half-moons, circular, narrow rectangles, or the entire bottom half. |qrx| uvh| dpb| gvd| npi| rpm| kad| ant| cqe| xcz| nzv| qru| gvx| vgd| jtk| tya| czc| lha| svn| hpi| pee| nmt| lql| dwg| xam| kym| nsb| pvu| lnb| kug| sfp| bzk| ovk| fcp| zvj| xbn| tai| kiu| unp| vma| wqc| tch| fxg| gyy| qnq| msg| yoa| ccd| ote| xrl|