Computers, cell phones and other electronic products, while bringing people the convenience and pleasure of work, also brought greater damage to our eyes, especially white-collar workers who work long hours in front of the computer. The survey found that most people who work in front of computers for a long time feel dry and astringent eyes, a burning sensation or foreign body sensation; some have unstable vision or temporary blurred vision; some even have heavy eyelids, swollen eyes and even headaches …… After an eye examination, the eyes of this type of white-collar syndrome appear conjunctival congestion, reduced vision, reduced regulation, and Tear secretion is reduced, and in severe cases, eye pressure is elevated and other symptoms are diagnosed as video terminal syndrome. Case Reproduction: Ms. Wang worked as a reporter in a newspaper and was paid according to the number and quality of articles, therefore, she desperately tried to write articles to earn money. Spend less than 1/4 of the day on the interview, while writing time is more than 8 hours, “I write a 500-word article takes about 30 minutes, write 1500 words takes more than two hours, write more than 3000 words need more than 4 hours of time. It takes me about 30 minutes to write a 500-word article, more than two hours to write 1,500 words, and more than four hours to write 3,000 words or more. Recently, I’ve been feeling uncomfortable with my eyes, and when I see light, I get teary and see things more and more blurred, what’s going on?” After the symptoms lasted for 2 months, she suspected that she had glaucoma and rushed to the hospital to see the ophthalmologist. After diagnosis, she was suffering from video terminal syndrome, which is caused by long-term computer use. What is video terminal syndrome Some research results show that continuous operation of a computer for more than 2 hours can cause a decrease in near vision, but after a 30-minute break, the vision can be restored to normal levels again. Therefore, this stage of fatigue does not pose a threat to vision, but accumulated to a certain extent, it may lead to vision loss.” There are many factors that cause eye fatigue when operating a computer, the most important one is the long time to look at the computer screen. In general, a normal person blinks about 20 times a minute, but when working with a computer, the number of blinks per minute decreases to about 6 because of excessive concentration. Tears not only have a sterilizing effect, but also have the important function of lubricating the eye and maintaining the corneal refractive system. Excessive eye use can lead to a decrease in tear secretion and a change in tear composition, which can lead to dry eye disease. If tear secretion is too little, the cornea is always not moistened, the entire eye surface will become dry, conjunctival congestion, resulting in corneal damage, eye burning, foreign bodies and other discomfort, and eventually appear unclear vision, visual fatigue and other symptoms. In addition, improper posture and distance of computer operation is also one of the reasons for eye fatigue. Working too close or incorrect posture, too close to the computer screen, the eyes are vulnerable to injury, especially when using a laptop computer, because the screen is too small, the user must work close, head leaning forward, the neck muscles force, the formation of work strain, aggravating eye fatigue. Some computers are used for too long, the screen brightness decreases, clarity decreases, which can also cause reading difficulties. The work environment is too strong or too weak light, will also cause a strong contrast between the screen and the outside world, causing irritation to the eyes. Different from the general reading books, computer screens are self-luminous display, there are changes in brightness, contrast, color, font size and spacing, and flicker, poor clarity, uneven or unstable brightness, etc., will have a negative impact on the visual system. Surrounding environmental factors can also cause dazzling screen, producing visual confusion phenomenon. Therefore, the visual stimulation of the self-luminous screen not only from the computer text, graphics and other information, but also from the luminous body special visual stimulation, such as sight in the computer, keyboard and other things between the frequent movement and gaze, sometimes the gaze rate of up to 60%-80%, resulting in a decline in the function of solid vision, control of solid vision movement of the brain nervous system function changes, will affect the efficiency of vision, resulting in eye fatigue The symptoms include dry eyes, itchy eyes, burning foreign body sensation, blurred vision, decreased visual acuity, eye swelling, orbital pain, etc. Patients may also experience increased myopia and eyestrain. Symptoms of video terminal syndrome Video terminal syndrome is a symptom that appears based on the patient’s self-conscious eye discomfort symptoms and is influenced by a variety of eye diseases, systemic diseases or psychological factors. It often occurs after using the eyes with discomfort or painful soreness around the eyes and orbits, soreness at the root of the nose or temporal area, fear of light, lacrimation, double vision and other local symptoms of the eyes, and in severe cases, nausea, vomiting, vertigo, night sweats, pallor, slow movement, neck muscle tension, shoulder pain and other general symptoms, and often mental symptoms such as depression, sleepiness, memory loss and insomnia. It is recommended to ensure healthy eye use, pay attention to the “intermission” To protect the eyes, the computer operator should maintain a distance of more than 60 cm from the computer screen. In addition, the monitor should be properly lowered, because the line of sight down about 30 degrees, the eye muscles in a more relaxed state, the least tired eyes. In addition, white-collar workers to adjust the working hours, pay attention to the “intermission”, after 1 to 2 hours of work, be sure to rest and relax for about 15 minutes, eyes closed or far-sighted can be. At the same time, the office should be kept ventilated and moist, the luminosity and clarity of the monitor should be appropriate, and the ambient light should be soft. Treatment is the key to eradicating visual fatigue, so be sure to find out the cause of visual fatigue. For example, if the fatigue is caused by refractive error, accurate optometry and prescription lenses are needed; if the fatigue is caused by abnormal function of the lid gland or eye disease, symptomatic treatment is needed; if the fatigue is caused by physical weakness or mental tension, lack of sleep, etc., Chinese herbal medicine treatment can be combined with it, and at the same time, a multi-pronged approach should be taken with the time, diet and exercise care, and perseverance and persistence.