Protect your eyes - high energy Blue light emitted by electronic devices have shown to increase the risk of accumulated Damage to the Retina, cataracts, sleep disorders and macular degenerationblock Blue light - block 65% of harmful Blue light, 100% of UV. Prevent short-term and long-term Damage like macular degeneration, cataracts, and the reduction of melatonin productionSleep better - block Blue light and reduce eye strain that affects your bodies circadian rhythms and prevents healthy restorative restful sleep you need to perform daily and prevent health issuesReduce eye strain - minimize headaches, dry eye and eye fatigue with added amber lens contrast, anti reflective coatings and patented focusing power 0.20 magComfort & protection - comfortable frames fit ergonomically with your face and head, fda Approved. Rested eyes, No headaches, better sleep, and No eye Damage caused by Blue light from digital devices.Material: Polycarbonate