There are two main reasons for bloodshot eyes after playing with cell phones for a long time. The first reason is due to eye fatigue caused by excessive use of the eyes, the eye compensatory production of conjunctival congestion, to relieve the symptoms of eye discomfort, to provide a sufficient amount of oxygen. The second is due to dryness of the eyes, after excessive use of cell phones and computers, which produces an excessive amount of blue light, blue light will aggravate the sensitivity of the eyes, caused by the aggravation of dry eye symptoms. Combining these two situations, generally speaking, if the situation of eye congestion, first of all, try to reduce the close range of eye use, especially the use of electronic devices; another can use a little sodium vitrate drops or Sturgeon’s drops, to relieve the dryness of the eyes and eye fatigue. If the computer is used more, the work needs to have to use, can be equipped with a pair of anti-blue light glasses, in the use of computers, cell phones to wear, can also alleviate the symptoms.