With Glass Elite VisionGuard, you're protecting more than just your screen. ZAGG added an Eyesafe blue light filter that blocks harmful high-energy (HEV) blue light which can contribute to digital eye strain. And the Eyesafe filter doesn't cause a yellow tint like the night settings on your device can. The super-strong Glass Elite VisionGuard screen protection also comes with ClearPrint technology which makes fingerprints virtually invisible when your screen is turned on.