NoIR filters can help people minimize eye discomfort and maximize visual resolution. Filter shade number 21 - light amber - allows in 28% of visible light, has 100% ultraviolet protection and BBP. As such, it heightens contrast for indoor use. This soothing color sharpens focus and provides excellent glare protection. This Retro wrap around frame measures 130mm x 140mm x 44mm is designed to wrap closely around the face for close protection and light blocking.
This frame style cannot be worn over other glasses. One year warranty. Above image is for style only and does not perfectly represent actual lens color.