Blue Light Blocking Computer Glasses UV Transparent Lens Black Reading Glass Product Features Dimension: lens width: 51mm; lens height:36mm; bridge: 17 mm; for male and female; ANTI BLUE LIGHT--Anti harmful blue ray, provide all-day protection, against the detrimental effect high energy visible blue light and UV400. REDUCE EYESTRAIN--Enjoy your digital time, NO worry about eye fatigue, blurred vision and headache. PC LENS--Glasses lenses are high-end space PC lens with SHMC tecnology , shock resistant and water proof, dust free and easy to clean; LIFETIME WARRANTY--We provide worry-free lifetime warranty(no man-made)and friendly customer service. Product Description Do you suffer headaches from long time screen time? Cyxus blue light blocking glasses will supercharge your health by blocking detrimental blue light while letting in all other beneficial light. Exposure to high rate blue light will impact our sense of circadian rhythms and wreck our internal rock, then cause insomnia. Wearing Cyxus blue light filter glasses will improve your sleep, help you sleep better and have good night. Cyxus-Polycarbonate lens Cyxus blue light blocking lens is made of aviation grade PC material. Compared with the mainstream resin lenses in the market, the PC lens is lighter, more ductile, not easy to break, impact resistant, not easy to turn yellow, Aspherical lenses Cyxus Anti blue ray lenses use a true aspheric design to reduce parallax. Through the lens, your vision will not deformed, and you will feel realistic, comfortable, and give you a good look. Anti eye fatigue Long time exposure to blue light would lead to digital eye fatigue. Wearing your cyxus glasses, no more tired eyes. Reduce eye strain and sensitivity to light when facing digital screens. Great for office workers or anyone who has to look at screen all day. Anti Bluelight Cyxus blue light blocking glasses use the HEV-Absorb technology to directly reduce the damage of high-energy blue light. About Cyxus Cyxus(Cyxus Technology Group Ltd) is the professional eye protection glasses brand since 2009. For better work and better life, Cyxus focuses on blue light blocking glasses and brings you enjoyment of digital life. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Our stock all ships from our US-based warehouses.Shipped via UPS or USPS(depending on location and package weight) Unless stated otherwise, all orders will ship within 24 hours of your payment being processed.Check our feedback to see the great reviews of FAST shipping we offer.Shipping is always FREE If you are not 100% satisfied with your purchase, you can return the product and get a full refund or exchange the product for another one, be it similar or not. You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. If you have any queries, please contact us via eCRATER. We usually respond within 24 hours on weekdays. Thank you for visiting our eCRATER store!