Designed for anyone that uses a computer or games for prolonged periods of time. Does wonders for the eyes and head. More details. Block 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 production Sleep 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 issues Reduce eye strain - minimize headaches, dry eye and eye fatigue with added amber lens contrast, anti-reflective coatings and patented focusing power 0.20 Mag