I. What is the trend of myopia in children? A: The hospital conducted a 10-year sampling campaign and the findings are alarming. According to the existing stored survey data, a total of 23,136 school-age children were sampled during the four years from 2008 to 2011 alone, and the rate of abnormal visual acuity rose from 19% to 37%, with myopia and astigmatism being the most prevalent. Among them, the rate of abnormal vision among school-age children in prestigious urban schools (schools with hot doors for school choice in urban areas) was much higher than that in elementary school for children of migrant workers. In 2008, the number of census was 2217, which included school-age children from various schools as well as some young children, and the sample test results showed that the children’s abnormal vision rate was 19%, which increased to 22% in 2009, and in 2010, after a sample test of 11,055 school-age children, the abnormality rate was as high as 31%, and rose to 37% in 2011. 2011 hospitals also tested Hangzhou’s In 2011, the hospital also conducted a vision survey of nearly 86,000 school-age children in Hangzhou, and the situation was similar to Wenzhou. Ye Liang of the Pediatric Ophthalmology Department of the Strabismus and Amblyopia Hospital of Wenzhou Medical University. Does the popularity of electronic smart products in the past two years have a great impact on children’s myopia? A: Myopia has the following influencing factors: 1. Clear influencing factors (1) Age: From preschoolers to adolescents, the prevalence of myopia gradually increases with age. The prevalence of myopia increases from about 2% to 3% at the age of 6-7 to about 70% at the age of 15. (2) Gender: The prevalence of myopia is significantly higher in females than in males, with a male to female ratio of about 1:1.2. (3) Family history: If both parents have no myopia, the prevalence of myopia in children is 30.5%; if one parent is myopic, it is 40.6%; if both parents are myopic, it is 59.4%. (4) Near work load: after-school reading and writing time 1-2 hours a day, the prevalence of myopia is 27.8%; reading and writing 3 hours, 34.2%, reading and writing 4 hours, 55.2%. 2, may be related to the influence of factors (1) lighting: some reports believe that lighting for more than 50 watts and the following myopia prevalence rate of 18% and 36%, respectively. However, it has nothing to do with the lighting fixture being incandescent or fluorescent lamps. However, some people also report that the prevalence of myopia is not related to lighting. (2) Nutrition: In general, we emphasize that food should be diverse and meat and vegetables should be combined with reasonable nutrition at regular intervals. However, there is no clear evidence to prove the relationship between malnutrition and myopia. (3) Outdoor activities and sleep: It is generally believed that we should participate in more outdoor activities and ensure sufficient sleep so as to reduce the workload at close range. (4) Television, computers and other electronic products: these increase the near workload and visual fatigue, which can cause temporary myopia, but there is no systematic and comprehensive study on the relationship between long-term use of electronic products and the occurrence of myopia so far. (5) Sleeping with lights on at night: Some reports suggest that the prevalence of myopia is higher in children who sleep with lights on at night, but some reports suggest that this is not relevant. (6) Trace elements: In our low myopia, it is possible that the serum zinc level is reduced, but it is not conclusive. III. What are the things that need special attention of parents and can be prevented? A: The occurrence of simple myopia is determined by genetic factors and environmental factors. Genetic factors are still difficult to control. Among the environmental factors, reducing the workload at close range is the key to prevention. Specific measures for prevention include: 1. Reduce continuous eye time and pay attention to eye posture. After reading, writing or using the computer every half hour, look away for five to ten minutes. Keep the distance between reading and writing at more than one foot. 2. Increase outdoor activities, ensure sufficient sleep, balanced diet and reasonable nutrition. 3.If it is clear that astigmatism is the cause of vision loss, you should wear glasses as soon as possible. 4.Don’t make the lighting too dark or too strong. 5.The time and distance of watching TV and computer should be controlled. 6.Pathological myopia can be prevented through genetic counseling. For example, if both parents are pathologically myopic, nearly 100% of the children will develop the disease. 7. Regarding traditional Chinese medicine, there is no conclusive scientific evidence that these therapies can effectively relieve myopia. If there are signs of myopia, what can be done to maintain the status quo as much as possible and prevent the progression of myopia? A: With the development of the eye and the increase in learning tasks, the progression of myopia in children is inevitable, so as a parent, first of all, it is not necessary to overly panic. The key question is how to slow down the progression of myopia as much as possible. In addition to the above-mentioned myopia factors and preventive measures, many parents often ask if my child is myopic, should I wear glasses? Will taking glasses off frequently cause myopia to deepen faster? It is clear that if your child’s vision loss is due to high astigmatism or ectropia, then glasses should be worn as soon as possible and should be maintained. If there is no astigmatism or exotropia, then you can read and write without glasses. Frequent removal of glasses will not significantly worsen myopia.