PROTECT YOUR EYES - Anti glare lens coating prevents insomnia and macular degeneration. Low blue light glasses provide computer eye strain relief & alleviate dry eyes & relief headache when using your T.V., smartphone, tablet or PC gamer equipment. BLOCKING OVER 30% BLUE LIGHT - Blue light blocking technology naturally blocks out the recommended 30% of blue light rays: do not settle. Protect your eyes with the best blue light blocking glasses money can buy. HIGH TECHNOLOGY - Anti-scratch, anti-reflective, anti-screen flicker, anti-glare, anti-fog coated; Electromagnetic ray, UVA & UVB blocking & fingerprint resistant. FDA REGISTERED - Fully registered with the Food and Drug administration to import Class I medical devices. DISCOVER THE EYEKEEPER DIFFERENCE FEATURESFrame Material: PlasticLens width: 1 13/16"(46mm)Frame width: 5 5/16"(135mm)Lens height: 1 3/8"(35mm)Frame height: 1 9/16"(39mm)Bridge (DBL): 9/16"(15mm)Temple length: 5 5/16"(135mm)Spring hinges: YesLenses: AcrylicHead size: Narrow To Medium