Part of our SAV Eyewear (Select-A-Vision) Optitek computer readers collection, these round thin metal frame reading glasses (2101) use advanced technology lenses to filter harmful blue light emitted from digital devices such as computers, tablets and smartphones. Our blue light protective readers come in black at +1.50 power, and include a matching soft case. Computer reading glasses also help relieve digital eyestrain, headaches from over exposure to blue light and reduces the risk of age related macular degeneration (AMD). Dimensions: Lens width 51mm, lens height 34mm, nose bridge 18mm, frame width 135mm, temple arm 150mm.