Blue light, another name for high-energy visible (HEV) light in the blue and violet part of the spectrum, is a particularly intense light wave emitted by many modern electronics, including smartphones and computers. The area of concern is the UV range 200-380nm and HEV range 380-480nm. Long term implications are now being studied but the short-term impact of digital eye strain affects people on a daily basis. Eyesafe phone covers block UV and high-energy visible (HEV) blue light from digital screens. Eyesafe screen covers are available in RPF30 online or thru our clinic locators option. Learn more about Retina Protection Factor or RPF.