Recently, Ms. Zhang, a white-collar worker in a foreign company, felt her eyes were getting more and more uncomfortable, dry, swollen, blurred vision, and sometimes even headache and head swelling, which were not easily relieved. Visiting a clinic, the doctor diagnosed her with conjunctivitis based on her performance and prescribed 2 bottles of antibiotic eye drops. However, after a few days of ordering the medicine, Ms. Li did not see any effect and her symptoms were more serious than before. She had to go to the hospital ophthalmology consultation again, after careful examination, it was “dry eye” in the trouble. Later she talked to her colleagues and friends, and found that in her circle of life, there are really not a few people who are troubled by this eye disease. In addition to white-collar workers, the elderly are also the most common group of people suffering from dry eyes. Especially in winter and spring, when the climate is dry and windy, the incidence of dry eye disease is higher. The human eye is protected by three layers of tear film. The middle is water, which mainly has lubricating and protective effects; the inner layer is some mucus, which hangs water on the smooth surface of the eye; the outer layer is lipid to prevent water from evaporating. If once the water evaporates too much, the eye is not protected by the tear film, it will become dry eye. Dry eye syndrome is inextricably linked to excessive eye use. According to a survey, the incidence of dry eyes among white-collar workers is almost 100%. As you know, blinking is equivalent to resting your eyes, and normal people blink once every five or six seconds. However, many white-collar workers, as soon as they enter the workplace, completely disregard eye hygiene, staying in front of the computer for several hours a day. During this period of time, attention is highly concentrated and the number of blinks is greatly reduced, with only one blink every ten seconds or even more than 20 seconds, resulting in vascular nerve regulation disorders, dry eyes, foreign body sensation, burning sensation, itchy eyes, photophobia, eye redness, blurred vision, fluctuating vision, and visual fatigue. Many dry eye patients, in addition to working too long in front of the computer, often also watch TV for several hours in a row, or read for a long time and the light, distance, angle is not correct, or wear contact lenses do not pay attention to hygiene, or long-term use of a lot of mascara, eyeliner, etc., are easy to cause adverse stimulation of the eyes, leading to dry eye disease. Studies have shown that the elderly are also prone to dry eye syndrome because when a person enters old age, the lacrimal glands will secrete relatively less tears due to the proliferation of connective tissue. In addition, external factors such as corneal degeneration, blepharitis, trachoma, immune diseases such as rheumatoid arthritis, the use of sleeping pills, cough suppressants, and vitamin A deficiency are all important causes of dry eye in the elderly. According to Chinese medicine, winter and spring are windy and dry, and the dryness is too strong. If a person’s liver and kidney yin is insufficient, or if there is a deficiency of qi and blood, which cannot nourish the eyes, and the eyes are not moistened, they are prone to dry eyes.