Dry eye syndrome is usually difficult to completely cure, because the occurrence of dry eye syndrome is related to aging factors and chronic inflammatory injury, which leads to degradation and atrophy of tear-secreting glands, and the treatment only relieves the symptoms, but can not make the atrophied glands fully recovered, so dry eye syndrome can not be completely cured. Dry eye is a common disease in ophthalmology, which is more common in dry areas, in summer and winter when using air-conditioning and heating, and is mostly seen in middle-aged and old people, which is related to long-term chronic inflammatory damage to the eyes and aging factors. Patients will have symptoms of dryness, foreign body sensation, stinging pain and photophobia, which can be diagnosed through ocular surface analyzer examination and tear secretion test. Treatment can be directed by the doctor through the artificial tears eye drops to replenish moisture for the eyes, so as to relieve the symptoms, such as sodium vitrate eye drops, polyvinyl alcohol eye drops, etc. However, the cause of the majority of patients is not completely clear, and the symptoms will recur and difficult to cure.