Edge Khor - Standard Polarized Replacement Lens - Yellow Khor Polarized Replacement Lenses reduce glare and eye strain for comfortable use Lens polarization eliminates glare from above and light reflection from below frames Polycarbonate lenses won't scratch or fog up and block 99.9% of UV rays Designed to be easily added or removed from the Khor safety glasses frames Meets ANSI Z87.1+2010 safety standards for the highest protection against impact