Many vendors primarily manufacture eye glasses using polycarbonate lenses. However, polycarbonate lenses offer the poorest optics and have the poorest abrasion resistance amongt eyeglass lenses options.
Because of these shortcomings, polycarbonate lenses should only be used for safety glasses. TRIVEX lenses are lightweight, offer similar impact resistance to polycarbonate lenses, but provide superior optical performance to that of polycarbonate.