Peepers by PeeperSpecs Women's Standing Ovation Square Blue Light Blocking Reading Glasses, Gray Tortoise, 51 + 2
- anti-reflective & anti-scratch - 7 layer anti-reflective coating on the lens surface to reduce glare and digital eye strain while also providing a dual anti-scratch coating for additional protection coating.lens width: 51 millimeters.lens height: 51 millimeters.bridge: 22 millimeters.arm: 145 millimeters.focus blue light lenses - filters 40%+ of high-energy (hev) blue light from digital devices and other potentially harmful sources making screen time easy on the eyes.