SafeStyle’s blue light filter lenses are perfect for indoor use around digital screens. They appear to look very similar as our clear lenses but have an impressive feature and are designed to filter out the harmful high-energy blue light frequencies from the visible light spectrum. SafeStyle lenses are specially engineered to filter some of the highest energy wavelengths of visible light (400-440 nm). The ideal lenses if you spend a significant part of your day infant of digital screens. All SafeStyle lenses are made from 100% recyclable UV400 shatterproof polycarbonate, blocking 99.9% of UVA/UVB with a super-hard anti-scratch coating.