What is blue light Where is blue light? Smart Phone Computer TV The harm of blue light AISSWZBER Blue Light Shield Computer Glasses can help reduce harmful blue light and has 100% UV protection: 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. Minimize headache Do you suffer headaches from long time screen time? Aisswzber blue light blocking glasses will supercharge your health by blocking detrimental blue light while letting in all other beneficial light. Sleep better Exposure to high rate blue light will impact our sense of circadian rhythms and wreck our internal rock, then cause insomnia. Wearing Aisswzber blue light filter glasses will improve your sleep, help you sleep better and have good night.