Working at a computer monitor for hours on end has become a part of the modern workday. And inevitably, all of that staring can put a strain on your eyes. One of the most common causes of eye fatigue is staring for long periods at digital devices such as: • Computer screens • Smartphones • Video games This type of eye fatigue or eye strain is sometimes known as computer vision syndrome. It affects about 50%-90% of computer workers. Some estimates say computer-related eye symptoms may be responsible for up to 10 million primary care eye examinations each year. It is best to get an eye examination before it is too late.