With the development of information technology, the relationship between computers and modern life is getting closer and closer. Many people, because of their work, must face the computer all day long and look at the computer monitor. Eye fatigue is a subjective feeling and cannot be considered a disease strictly speaking, and is diagnosed solely on the basis of the person’s complaints. Most patients complain of dryness, burning, or a foreign body sensation in the eyes, unstable or temporarily blurred vision, and may feel heavy eyelids, swelling and pain in the eyes, or even headaches. Nevertheless, a detailed eye examination can reveal some clues, such as conjunctival congestion, decreased vision, decreased regulation, reduced tear production, etc. There may even be an increase in intraocular pressure, which can seriously affect your work, study and life. There are many factors that cause eye fatigue, generally speaking, can be broadly summarized as the following reasons: prolonged overuse of the eyes, glasses refraction is not appropriate, the degree is too deep, or a high degree of astigmatism, if the degree of glasses with incorrect, or because of the distortion of the frame, resulting in incorrect pupil distance, may therefore increase the burden on the eyes and eye fatigue symptoms. Work posture and distance, monitor picture quality and clarity, too strong or too weak light in the work environment are all factors that may lead to eye fatigue. Understanding the symptoms and causes of eye fatigue, then how should we prevent and improve the visual fatigue? As mentioned earlier, the degree of eye fatigue is related to the length of work, so the best way to avoid eye fatigue is to rest in the middle of work, continuous work time to not more than 1 hour is appropriate, rest can look away, do eye exercises. If you are a spectacle family, then it is important to match a pair of suitable glasses; there is also the posture when using the eyes, maintain a distance of more than sixty centimeters, the line of sight down about 30 degrees of work posture, maintain a soft light, and so on. If the symptoms of eye fatigue are very serious and cannot be improved, you must consult an ophthalmologist and use artificial tears or ciliary muscle relaxants to improve the symptoms of eye fatigue; in recent years, we have also received good results by using Chinese acupuncture and Chinese medicine ion introduction to treat eye fatigue. If you use computer for a long time and suspect that you have symptoms of eye fatigue, try to answer the following six questions, if more than half of the answers are positive, then your eye fatigue may have affected your daily life, and it is time to consult an ophthalmologist. 1.Feeling dry eyes and lack of tears. 2.Feeling that your eyelids are heavy and drooping and cannot be opened. 3.Feeling a burning sensation in your eyes. 4.Sight is unstable, sometimes clear and sometimes blurry. 5.Feeling the presence of foreign bodies in the eyes. 6.Feeling swelling and pain in the eyes, headache.