BLUE LIGHT FILTER LENSE - Block harsh blue light and provide UV400 protection. Blue light blocking computer glasses are professional for people who work long hours on computers, tablets, games, phones, or on TV. | ANTI EYE STRAIN, MORE RESTFUL SLEEP - Enjoy your digital time, NO worry about eye fatigue, blurred vision, and headache. Improve Better Sleep, provide all-day protection. | TRANSPARENT LENS - Low color difference, bring you a good visual experience, shock resistant, non-fragile, easy to clean, safe to wear. These lenses have been tested for anti-blue light and we will provide you with test photos if you have any questions. | FASHION & HIGH QUALITY MATERIALS - Ligthweight frame, never out of fashion, strong and stable, the non-prescription glasses are suitable for both women and men. | OUR SERVICE: We stick to paying attention to product quality, if there are any quality problems please let us know!