Lifestyle diseases are diseases of the body or mind caused by undesirable behaviors in people’s daily lives, such as clothing, food, housing, transportation and recreation, as well as social, economic, spiritual and cultural aspects, and are called lifestyle diseases. In societies with mainly agricultural production, low productivity and poor material life, people’s health is mainly threatened by infectious diseases, parasitic diseases and nutritional deficiencies, while in countries with mainly industrial production, advanced technology and rich material life, people’s health is mainly threatened by cardiovascular and cerebrovascular diseases, malignant tumors, overnutrition and hereditary diseases. This is “poor people have poor diseases, rich people have rich diseases”. In today’s society, diseases closely related to lifestyle have become the main problem threatening people’s health. The main manifestations of modern lifestyle diseases are as follows: 1. The increase in psychological tension and stimulation, unreasonable dietary structure, environmental pollution, smoking, alcohol consumption and other factors have led to an increase in the incidence of cardiovascular disease, cerebrovascular disease, diabetes, malignant tumors and other causal diseases, becoming an important cause of premature death and disability. 2, the accelerated pace of modern life, the concept of competition, the increase in the number of only children, the increased burden of aging, increased tension stimulation, intense psychological and emotional reactions and other important causative factors, resulting in a series of psycho-emotional reactive diseases, such as the exam tension syndrome, retirement life maladjustment, emotional diarrhea, eyelid spasms, etc. 3, lack of beauty and makeup and skin health care hygiene knowledge, contact dermatitis, hair dye allergic dermatitis, wearing earrings caused by the incidence of infection in young women increased significantly. 4, high heel disease, contact lens keratitis, sunglass disease, dry eye disease, etc. is very common. 5.Bird-keeping, cat-keeping, dog-keeping and other pets have led to an increase in animal-transmitted diseases, especially rabies, which has become sporadic in many areas. 6.The number of smokers has increased greatly and has become an important factor in lung cancer and cardiovascular diseases; alcoholism occurs frequently. 7, among the brain workers, due to sedentary, eye, brain, etc., writing more, resulting in brain fatigue, visual fatigue is more common. Urban lifestyle disease – dry eye Dry eye is a multifactorial ocular surface tear disease that causes eye discomfort, visual impairment, tear film instability, and leads to ocular surface damage, accompanied by increased tear osmolarity and ocular surface inflammation. According to worldwide epidemiological statistics in recent years, the prevalence of dry eye among people aged 40 years or older is 14.6% in the United States, 23.5% in Japan, 34% in Thailand, 21% in Beijing, 30.8% in Xi’an, and 23.5% in Taiwan. The incidence rate of dry eye disease in all countries shows an increasing trend year by year, and its causes are closely related to environmental pollution and the modern lifestyle of human beings. 1, dry eye clinical symptoms Dry eye symptoms are mainly dry eyes, foreign body sensation, burning sensation, eye itching, eye redness, visual fatigue, eye discharge, photophobia, tearing and vision loss. Other symptoms include headache, irritability, fatigue, and difficulty concentrating. On examination, conjunctival congestion, blepharitis, corneal epithelial erosion, mucus coil filament formation, corneal softening and ulcer perforation can occur in severe cases. 2, the formation of dry eye disease in the human eye surface there is a layer of tears, people blink when the tears are then evenly distributed in the performance of the eye, cleaning the conjunctiva, cornea on the dust, in order to keep the eyes bright. Generally people’s tear secretion decreases with age, so the incidence of dry eye disease is higher among the elderly. There are quite a number of factors that can trigger dry eye, including: reduced tear production after middle age, diseases of the eyelids themselves, such as blepharitis, trachoma, etc.; various immune conditions and connective tissue diseases, such as rheumatoid arthritis, lupus erythematosus, dry syndrome, arthritis syndrome, etc.; caused by certain drugs, such as birth control pills, sleeping pills, sedatives, cough medicine, stomach medicine, vitamin A deficiency, etc. All of these factors can lead to changes in the amount and composition of tears, inducing abnormal tear film function and dry eye. In recent years, the trend of dry eye disease is unusually young. This is mainly due to the fact that in modern life, young people work and live more and more in contact with TV and computer, face fluorescent screen for a long time, lack of blinking or letting eyes rest at the right time, which speeds up the evaporation of tears in both eyes; or use some kind of eye drops for a long time, such as eye fatigue elimination, blood vessel constricting eye drops, or wear corneal contact lenses and the so-called beautiful contact lenses for a long time, which leads to the reduction of tear secretion and abnormal composition. Dry eye occurs. 3, how to prevent dry eye disease (1) to develop the habit of blinking at the right time. Dry eye disease is a pressure-type disease, the problem is over-concentration, eyes for a long time to stare in one direction and the natural transient frequency decline. The number of natural eye blinks per day is 8,000, or once every 8 seconds on average. Therefore, the best way to avoid dry eyes is to blink at the right time and take a proper rest, let your eyes rest for at least 10 minutes every hour, do not operate continuously. (2) Eat more vegetables and fruits, and increase the intake of vitamins A, B1, C and E. To prevent dry cornea, dry eyes, vision loss, and even night blindness, computer operators should eat more foods rich in vitamin A, such as soy products, fish, milk, walnuts, green vegetables, cabbage, hollow vegetables, tomatoes and fresh fruits. Vitamin C can effectively inhibit cell oxidation. The main role of vitamin E is: to lower cholesterol and remove waste from the body. Vitamin B1 can nourish the nerves, and green leafy vegetables contain a large amount of vitamin B1. Those who suffer from chronic blepharitis can supplement with deep-sea fish oil. (3) To avoid reflections or unclear fluorescent screens, the computer should not be placed across or behind a window, the ambient lighting should be soft, and curtains should be drawn if there is a window behind the operator to avoid bright light reflecting directly onto the screen causing eye fatigue. (4) Appropriate supplementation of corneal nutrient solution. Such as: New Tearran Eye Solution, Si Ran Eye Solution, Beyran Eye Solution and Xiao Lai Wei Eye Solution. There are many artificial tears type eye solutions sold in pharmacies, the key point to note is to choose artificial tears that do not contain preservatives or contain only trace amounts of non-toxic protective agents. In addition eye exercises can also play a role in relaxing the regulation of the eyes and reducing visual fatigue. The essence of eye exercises is self-massage, that is, by self-massaging the acupuncture points and skin muscles around the eyes, increase blood circulation in the eye sockets, improve nerve nutrition, can eliminate excessive blood congestion in the brain and eyes, due to the smooth circulation, the eye regulation muscle can eliminate the accumulation of metabolic products, to achieve the purpose of eliminating eye fatigue. It should be especially reminded that if you suspect that you have dry eye, you should go to a medical examination as soon as possible and use the medication under the guidance of a doctor after a clear diagnosis, not to blindly choose your own medication to use.