Help reduce eye strain while watching television, and working on your computer, laptop, smartphone, or tablet with Blue Light Blocking Glasses for Dummies. Reducing blue light exposure to your eyes may help improve your sleep and stay focused. The glasses have an everyday look, with black frames and clear lenses. Each pair of glasses includes a soft pouch and comes packaged inside its own hanging box. There are 18 boxes of Blue Light Blocking Glasses per countertop display. One size fits most.