A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one vision problem at a time. However, these lenses have no visible lines, improving the cosmetic appearance of ...

Factors impacting the price of glasses include lens material, coatings, design, and brand.Eyeglass lenses are made of different materials, including glass, plastic, or high-index materials.

Peeps is a pocket-sized cleaner that ditches the cloths and the disposable wipes in favor of a patented invisible carbon ...

There are several types of optional lens materials that impact their thickness ... without otherwise hampering with the ...