DefenderShield® Signature Blue Light Blocking Glasses are the ultimate solution for protecting your eyes from blue light emitted from digital screens of computers, laptops, tablets, cell phones and other electronic devices. While our DefenderShield Blue Light Glasses protect your eyes from damaging blue light day and night, you will notice an improvement in eye strain that can result in headaches, fatigue, dry eyes, and problems focusing. While wearing our professional and polished frames, you can feel confident that the negative effects of long-term exposure to blue light are reduced. We have ergonomically developed our unisex blue light blocking glasses for the most comfortable fit imaginable. Get both daytime (yellow) and nighttime (orange) lenses in one with our Versa 2-in-1 Blue Light Glasses with Clip-on 50% and 99% blocking lenses! Perfect For: home, office, gaming, lounge, computer, smartphone and tablet use.