Frequent cell phone blurring may be caused by visual fatigue, dry eye, refractive error and other reasons. 1. Visual fatigue: because patients frequently play cell phones will lead to visual fatigue, it may cause ciliary muscle spasm phenomenon, resulting in the symptoms of blurred eyes. 2. Dry eye: because patients frequently play cell phone eye transient movement will be reduced, thus affecting the normal secretion of tears, resulting in decreased tear film stability, there may be dry eye phenomenon caused by blurred eyes. 3. Refractive error: the clinical manifestations of refractive error are myopia, hyperopia, astigmatism, etc. If patients suffering from refractive error play cell phone frequently, due to the parallel light through the refractive system of the eye, can not form a clear image of the object on the retina, and therefore the phenomenon of blurred eyes may occur. When the phenomenon of blurring eyes after playing cell phone frequently cannot be relieved by resting, it is recommended to go to the regular eye hospital for detailed examination, identify the cause of the disease, and cooperate with the treatment under the guidance of the doctor.