NoIR fit-over style filters can help people minimize eye discomfort and maximize visual resolution. Filter shade number 21 - medium - provides 100% ultraviolet protection. These sunglasses allow in 28% of visible light . This filter is a soothing color that sharpens focus and provides excellent glare protection. This filter has been recommended for those with Glaucoma or are Pre-Cataract.
This standard large fit-over style frame may be worn over most prescription frames or worn alone. The entire body of these fit-over sunglasses are made out of this same filter color. It features side shields with temple lapped construction to keep out extraneous light and wind and it has curved temple pieces for a non-slip fit.
Large size (#L) measures 150mm x 148mm x 56mmm (5.91" x 5.83" x 2.21").