INTRODUCING BIFOCAL
Bifocal Lenses contain two different prescriptions in the same lens. The primary purpose of glasses bifocals is to provide the optimal balance between distance vision and near vision focusing needs. Eyeglasses bifocal lenses are available with the reading segments in a variety of shapes and widths including sunglasses bifocal options. The most popular reading bifocal is the Flat-Top (also known as straight-top or D-segment), 28 millimeters wide. Insight Lenses offers a number of options for the eyeglasses bifocal lens wearer.