Features 9 Glasses in One: Sleep ZM “All-in-One” Aviator Blue Light + Sunglasses + Driving Glasses feature 9 different technologies integrated into 1 pair of glasses: 1) Sleep Glasses, 2) Photochromic Sunglasses, 3) Computer Glasses, 4) Gaming Glasses, 5) Polarized Night Driving Glasses, 6) Migraine Glasses, 7) Anti-Glare, 8) Anti-Electronic Radiation, 9) Anti UVA UVB 400. Reduce Eye Strain: Blue Light reduces digital contrast making it harder for your eyes to focus - resulting in tired eyes and eyestrain. Sleep ZM’s special “All-In-One” polarized lens significantly increases digital contrast, making it easier for your eyes to focus and relax and reduce light sensitivity to reduce headaches and migraines when working on your computer or playing video games.