Foster Grant Square Blue Light Glasses - Purple 3.00

The Elana Blue Light Readers from Foster Grant add functionality as well as vibrant color to the act of reading. The soft square frame is a pretty, variegated purple and this Foster Grant® Recircul8™ frame, made from a minimum of 25% recycled plastic. After you choose the right magnification to bring small print into focus, you can feel good knowing that these readers also filter 30% of potentially harmful blue light produced by computer, smartphone and other digital screens, as well as other artificial and natural sources, including the sun. Potentially harmful blue light refers to the 415-455 nanometer range of the visible light spectrum. The percentage represents the average amount of potentially harmful blue light filtered at 5 nanometer increments in this range. Covered under U.S. Pat. No. 8,360,574. Other U.S. and foreign patents pending.