Description
NoIR filters can help people minimize eye discomfort and maximize visual resolution. Filter shade number 21 ‚medium gray ‚ allows in 32% of visible light, has 100% ultraviolet protection and has a soothing color which sharpens focus and provides excellent glare protection. It is often recommended for people with post-operative cataracts. The frames come in a modern wrap-around style with adjustable temples and hinges.