Magnifier eyewear features a 1.5 diopter, clear lens that is scratch-resistant & filters 99 percent of UV radiation. One-piece wraparound lens will not obstruct your vision. The tight fit allows you maximum safety & almost zero percent of your vision outside lens view. Comfort is enhanced by the flexible temples. Nonslip, rubber head grips on the temples are notched & ready for a clip-on breakaway cord (sold separately). Total orbital seal provides superior protection for people needing magnifying lens. Evenly balanced polycarbonate lens features a Duramass scratch-resistant coating. Eyewear meets or exceeds ANSI Z87.1 safety standards.