The so-called dry eye disease is actually a series of eye discomfort and eye surface damage caused by a decrease in tears or tear gland function, which reduces the stability of the tear film on the eye surface. Patients often experience dry eyes, soreness, photophobia, reduced vision and even headaches, irritability, fatigue, poor concentration, and in severe cases, corneal lesions.” Tear secretion generally decreases with age, so dry eye used to occur more in the elderly population. In addition, eye diseases such as lid gland insufficiency and blepharitis, immune conditions such as rheumatoid arthritis and lupus erythematosus, and connective tissue diseases, as well as climatic factors, can cause dry eye. In recent times, there has been a significant increase in the number of dry eye patients, which is related to the rapid evaporation of tears from the eye surface due to dry spring weather. The misuse of eye drops adds to the problem, and the use of artificial tears should be remembered. When people have dry eyes, soreness and fatigue, I am afraid that the first thing that comes to mind is not to consult a doctor, but to run to the pharmacy and buy eye drops for themselves. On the other hand, it comes from some doctors. Because some doctors do not know enough about dry eye, they often misdiagnose dry eye patients as infectious conjunctivitis or keratitis and apply a lot of antibacterial and anti-inflammatory eye drops for treatment, which not only does not relieve dry eye, but also causes new damage to the eyes. Artificial tears supplementation is currently the most important method of treatment for dry eye. However, many patients do not follow the doctor’s prescription, or use it when their eyes are uncomfortable and not when they are comfortable, or increase the frequency and dose without authorization. The former is not conducive to the persistence and uniformity of the tear film on the eye surface, and the latter may cause damage to the eye surface. Patients with dry eyes should generally use one drop every 4 hours, 4 times a day, and no more than 6 times a day. The most effective way to prevent dry eye is to maintain a regular lifestyle, get enough sleep, drink more water, watch less computer and television, and play less video games. If you need to work in front of the computer for a long time, you should pay attention to the eye and the screen to maintain a distance of 50 to 70 cm, and make the screen slightly lower than the eye level of 20 cm, so that the eye surface is exposed to the minimum area of air; at the same time to avoid “eyes without turning”, try to blink more, every 45 minutes to 1 hour, rest the eyes for 5 to 10 minutes. In addition, the wind is dry in spring and the water on the eye surface evaporates quickly, so it is the high season of dry eye disease, so you should pay more attention to replenish water, and eat more walnuts, peanuts, soy products, fish, milk, green vegetables, cabbage, cabbage, tomatoes and fresh fruit and other foods that help protect the eyes, and drink more green tea to reduce the radiation damage to the eyes from computers.