Lightly used. Incredible blue light glasses. Compact and easy to throw in a bag. Only selling because I got reading glasses. Cruz glasses with blue light protection for screens. Round shape, mixed and universal design. Give your eyes some relief with our screen glasses. Visual fatigue reduction. Headache relief. Better sleep quality. Mixed Blue light blocking glasses (Men and Women) An ultra-comfortable frame. Just 12 grams on your nose. Nooz Protect™ lenses are up to 5 times more protective than standard eyewear. At 430 nanometers, our certified* protection filters out up to 40% of blue light. Swiss TR90 frame rated the best optical nylon in the world offering both flexibility and lightness