Blue light is a color in the visible light spectrum with a short wavelength, meaning it produces higher amounts of energy. We’re exposed to it every day, particularly those of us who spend long periods outdoors, or in front of a screen, though too much exposure strains the eyes, causes headaches and leads to sleep deprivation. Eyes tend to become strained, dry and it becomes harder to fall asleep. Blue light blocking lenses help keep the pressure off and give your eyes some rest.They are protected, and it’s so much easier to work in front of the screen for the rest of the day. Less dryness, less strain and more sleep.