• Optical class 1
• 100% protection against UV radiation
• Impact resistant
• Anti-Fog
• Exterior surface extra scratch resistant
• Durable mirror glass

A photochromic lens is a lens that changes color when exposed to light with ultraviolet rays, such as sunlight, and that reversibly returns to its original color in the dark or, more generally, when the radiation disappears. Photochromic lenses are used in (sun) glasses, sports and ski goggles or as contact lenses.