Saturday, April 04, 2009
Trifocal Glasses, Trifocal Eyeglasses, Tri focal, Trifocal Lenses,: "Trifocal Glasses Lenses contain three focal points, usually for distance, intermediate and near vision. A tri focal lens has an added segment above the bifocal for viewing objects in the intermediate zone, which is approximately arm's length away. Trifocal lenses are available with the reading segments in a variety of shapes and widths. The most popular is the flat-top (also known as straight-top or D-segment), 28 millimeters wide. Eyeglass Lens Direct offers a number of options for the trifocal lens wearer. To find out more about our selection of lenses for trifocal eyeglasses, search for Regular Plastic (CR-39) Trifocals, Polycarbonate Trifocals, High Index Trifocals, Photochromic Lenses, including Transitions Trifocals, Polarized Trifocals, and other eyeglass and sunglass tri focal lens options."