Index 1.67 is a lens material that is 35% thinner than standard. The thickness of the lens is also influenced by the diameter of the eyeglass lens, which depends on the size of the frame and the interpupillary distance. For high correction values, it is worth choosing frames with a smaller lens area. Some lenses have the METS optimization option – fitting the smallest required diameter. We recommend optimization for positive correction values.
Standard "white" spectacle lenses without colored sun filters.
Anti-reflective coatings with additional layers for easier cleaning, repelling dirt and dust. An additional hardened layer ensures longer use of glasses.
Advanced HOYA spectacle lenses.
Improving contrast and vision quality in low light, fog, and rain, or with filters enhancing driving safety in conditions of strong sun glare from, for example, wet road surfaces.
Special eyeglass lenses for drivers. They have coatings that improve vision contrast. They reduce glare.
Increased mechanical resistance. Optical material recommended for "rimless" frames. Can be used in frameless mounts.