Madeyes Blue Blocker Computer Glasses, Anti Glare, PACK OF 2 MADEYES Blue Light Blocking Computer Glasses, Anti Glare, PACK OF 2. These come in two styles: black and tortoise shell. They are designed to reduce eyestrain and improve sleep by filtering harmful blue light from digital screens. Both pairs are new in box with accessories. Glass Size is 51 D 20-143. Any listed measurements are approximate. Preowned items have typical wear. We do our best to capture any flaws in photos. Thank you for shopping with us.