JM Blue Light Blocking Glasses: Focus on children's eyes protection. Clear lens -- Less reflective,no affect reading, and almost no color difference. Blue ray blocking -- High quality anti blue light lens can absorb or cut off the harmful high-energy blue light UV protection -- Anti Blue light Lenses block 100% of UV light and improve eye health Anti eye fatigue & headache -- Reduce eye strain and sensitivity to light whlie facing digital screen for a long time Minimize headache -- Block harmful blue light ,promote eye health, Minimize headache Better Life -- Long exposure to blue light affect your brain and body .Blocking blue light can keep you having better sleep The super light frame -- Let your kids feel comfortable while wearing this awesome JM kids computer glasses.