Reduces blurred vision from prolonged exposure to blue light,Alleviates visual fatigue and discomfort from long periods of web surfing, gaming and working under , and dry eye,eye dry, glare, headache, migraine, or disrupting your sleep. Protect your vision and help sleep better, you will never have trouble with sleeping again. You can enjoy a restful deeper sleep,Enjoy your digital time. UV400 lenses can filter out glare from reflective surfaces,Block resist 99.99% the blue ray and the high energy visible blue light, provide visual clarity .Reduce discomfort from TV, phone, digital screen and reading under fluorescent lights. Reduce fatigue, headache,protect your eyes from the harmful effects of blue light, protect your vision,Make you feel good every day. our anti eye strain glasses use high quality composite, it made of the best TAC thermoplastic, this highly advanced nylon-based material is flexibility, memory retention, shock resistant and water proof, is the best choice for eyewear enthusiasts. You will receive retro square oversized frame sunglasses*1, premium microfiber pouch*1, microfiber cleansing cloth*1. Making it a wonderful yet practical gift idea for friends and family! In case any accident of the shipping or unexpected damage happened to these fashion retro glasses. Please contact us without hesitation, we will reply within 24 hours to solve the problem until satisfaction. You have no risks to try.