saeby black blue light glassesDanish designed screen glasses in high quality that protect your eyes from harmful blue light. Blue light comes from screens like computers, tablets and TV, and affects your eyes negatively. It can cause headaches, tired eyes, and poor sleep. The glasses block approximately 30% of blue light. With a pair of Luxreaders anti blue light glasses, you will experience benefits without compromising your personal style. The benefits are: Better sleep Improved