Offering a great balance of style and function, adding these Foster Grant® Joey Blue Light Antifog Readers to your collection is a great choice. The antifog-coated lenses help resist water droplets from adhering, providing a clearer view.These lenses also help filter blue-violet light*, and are scratch and impact-resistant. The round-shaped frames are made from matte, rubberized, navy blue plastic. These readers feature spring hinges that make for a comfortable fit.*Filters at least an average of 30% of blue-violet light (between 400 and 455nm as stated by ISO TR 20772:2018) as measured in 5 nm increments. Covered under U.S. Pat. No. 8,360,574. Other U.S. and foreign patents pending.