Progressive Multifocal Reading Glasses Blue Light Blocking for MenDiopters:+0.75+1+1.25+1.5+1.75+2+2.25+2.5+2.75+3+3.5+4.0

1106 Black 1106 Grey 1106 Purple. USE WITHIN 3 FEET-We provide you with a clear view within 3 feet. The lens is divided into three layers, the top layer is usually used for talking to people, the strength is half of the strength you purchased, the middle layer is usually applied when using the computer, the strength is 1/3 of strength you purchased, and the bottom layer is used for reading, the strength is the strength you choose. ANTI BLUE LIGHT READING GLASSES-Blue light blocker lenses with UV400 protection, anti glare and blocks harmful blue light, for people who work long hours on smartphone, computers, tablets, games, or other digital devices. Protect your eyes, enjoy your digital time, NO worry about digital eyestrain, blurred vision, headache and insomnia. Give you a better sleeping and spirit. Crystal Clear CR39 Resin Lens-Petofi reading glasses has optical, strong, durable frame and clear CR39 Resin Lens. The CR39 lenses are clear enough. This sturdy reading glasses have A-cla