Alright dipstick, Computer vision syndrome, also referred to as digital eye strain, describes a group of eye- and vision-related problems that result from prolonged computer, tablet, e-reader and cell phone use. Many individuals experience eye discomfort and vision problems when viewing digital screens for extended periods. And on that note, screens use blue light which is a factor in eye strain which is why theres a blue light filter which will cute the blue light and give a orangish tint