Stylish Ryders Caliber sunglasses frame, but fit with an indoor lens designed for use when working with computers; this lens blocks harmful light wavelengths given off by computer screens, including 100% of blue light, which is the most damaging light to the eyes. Polycarbonate Lens Material UV Protection block 100% of UVA, UVB, and UVC rays Shatterproof Optically Correct specially shaped to eliminate distortion Scratch Resistant Coating