GAMMA RAY FLEXLITE GR OG 006 Computer Reading Glasses in Ergonomic Memory Flex Frame with UV Protection, Anti Blue Rays, Anti Glare and Scratch Resistant Lens in 53-16-137 Size with Optional +1.25 to +3.00 Power composite frame plastic lens non-polarized Lens width: 53 millimeters Anti-Glare - Minimizes visual glare. Reduces Eye Fatigue - Decreases visual stress caused by prolonged monitor viewing. Scratch Resistant - Anti-scratch coating on lens. Durable Frame & Timeless Style - Made from remarkably lightweight and flexible Beta Memory Polymer. RX Compatible - For your convenience, Gamma Ray frames are RX compatible. This allows you the option of acquiring a second pair with the accessibility of your optician replacing the lenses with your own prescription lenses.