PROSPEK - Premium Computer Glasses - Professional Clip On - Glasses Clips - Blue Light and Glare Blocking NOTICE THE DIFFERENCE IN DAYS - With these glasses, youll start to notice better screen viewing and greater clarity after just a few days of wearing them NO MORE TIRED EYES - Reduce eye strain, eye fatigue and sensitivity to light during long computer sessions. Allow your eyes to blink and function naturally. Great for office workers or anyone who has to look at a screen all day. Designed for all day comfort with a durable yet flexible frame. Whether youre catching up on emails after a long day at work, or burning the midnight oil to finish a project - protect your eyes from excessive levels of blue light WORKS WITH ALL SCREEN TYPES - The average American now spends over 7 hours a day looking at a screen. Whether its laptops, desktops, tablets or smartphones - our glasses help reduce harmful blue light that can causes eye issues and prevent ideal levels of sleep. Also effective against sensitivity to fluorescent lights NO COLOR DISTORTION - Unlike other glasses, PROSPEK lenses dont distort screen colors or have a harsh yellow tint. Our glasses only block the harmful 50% of blue light, while letting the other, harmless 50% through, giving you get the optimal viewing experience without any color distortion IMPROVED VIEWING EXPERIENCE OR YOUR MONEY BACK - Were so confident that our glasses will give you better screen viewing that we offer a full 90 day money back guarantee. Your purchase is completely RISK FREE. If for any reason youre not completely satisfied, simply contact us for a full refund - no questions asked