In the visible colour spectrum (what we can see around us everyday), blue-violet light sits on the very edge, right next to the harmful, non-visible ultraviolet (UV) light. It’s a high energy colour, due its short wavelength, which means, like UV light, it can be harmful to our eyes. It can potentially cause eye fatigue and dry eyes. We experience blue-violet light mainly from the sun, and it’s what makes the sky blue, but we also find it artificially from fluorescent and LED lighting. Today, we live in a fully connected world, with our eyes being exposed to blue-violet light constantly, so we’ve taken steps to fight back.