Our modern Premiums glasses have a new purpose. Not only do the clear lenses provide UV400 protection, they also block out blue light from screens like smartphones, computers, and TVs. Too much blue light can strain your eyes and throw off your circadian rhythms, and if you're like most of us you definitely get a lot more blue light exposure than you need! Slip on these Blue Light Blocking Premiums before screen time, and your eyes will immediately thank you. Clear blue light blocking lenses FDA approved and impact-resistant lenses; UV400 protection Unisex Refined arms for superior comfort Protective pouch included