Many patients with dry eye do not really understand the cause of dry eye. Some may have both lack of aqueous humor and excessive evaporation. Before starting treatment for dry eye, it should first be clear which type is the main cause so that targeted measures can be taken. Dry eye is a chronic condition that requires long-term treatment, and patients need to be encouraged to adhere to the treatment of dry eye. 1.Treatment of aqueous humor deficiency treatment of dry eye (1) Reduce or avoid the causative factors: such as do not use the computer for a long time, less exposure to air conditioning machine smoke environment, etc. (2) Tear component replacement therapy: The best tear component replacement is home-based serum, but its source is limited and vulnerable to contamination. Artificial tears are still the main drug, and for severe patients, preservative-free artificial tears should be used. (3) Tear preservation, delaying its discharge and evaporation: ① Wearing silicone eye shields, wet room lenses or diving goggles; ② Temporary (collagen plugging of tear dots) or permanent tear closure (laser, cauterization or surgical excision and suturing); ③ Therapeutic corneal contact lenses, but they are not recommended for severe dry eyes. ④Promoting tear secretion: oral administration of drugs such as Bisopin, (bromobenzylcyclohexylamine), Pilocarpine hydrochloride, Neostigmine, etc. can promote tear secretion in some patients, but the efficacy is not yet certain. ⑤ Surgery: The use of autologous free submandibular gland transplantation, and secretion of fluid composition similar to tears, and the secretion is always, brings a boon to patients with severe dry eye. ⑥Other: The use of low concentration (0.05%-0.1%) of cyclosporine A to spot eyes, twice a day, maintained for 6 months, can significantly reduce Sjgren’s syndrome is blepharoplasty gland dysfunction, which is very common in oily skin and elderly people. 2, dry eye disease of visual screen terminal eye disease is a group of diseases arising from the prolonged use of terminal screens such as computers, word processors, and television game consoles, which affect the eyes and physical and mental health, also known as VDT syndrome, including ocular, systemic and psychiatric symptoms. Due to prolonged, close-up gaze at the screen, it is easy to develop eyelid transient abnormalities (transient incomplete, transient reduction), excessive evaporation of tears, shortening of tear film rupture time, affecting tear film quality, thus producing or aggravating dry eye symptoms. Treatment of dry eye measures to prevent: (1) maintain the correct operating posture, the screen to the eye distance of about 40-70cm, the line of sight slightly down to form a certain angle. After using the computer for 1-2h, take a break for 10-15min, look into the distance and rest your eyes; move your body appropriately. (2) Patients with refractive error should wear glasses with appropriate prescription. (3) If dry eye symptoms occur, use artificial tears.