Xinhua News Agency, Beijing, August 31 (Xinhua) - Adhering to the process evaluation of three-level prevention and strengthening - Interpretation of the "Comprehensive Public Health Intervention Technical Guidelines for Myopia Prevention and Control in Children and Adolescents" - Xinhua News Agency reporters Gu Tiancheng and Wu Si improve the visual environment of schools, families, and communities, implement 2 hours of daytime outdoor activities and 1 hour of physical exercise, and conduct visual impairment screening no less than 2 times every academic year... 30 days, The National Bureau of Disease Control and Prevention has issued the "Guidelines for Comprehensive Public Health Intervention Techniques for Myopia Prevention and Control in Children and Adolescents", proposing appropriate technologies and comprehensive intervention measures for promoting myopia prevention and control in children and adolescents from the perspective of public health. In recent years, myopia in children and adolescents in China has shown a trend of high incidence and younger age. According to monitoring data from the China Center for Disease Control and Prevention, the overall myopia rate of children and adolescents in China fluctuated and decreased from 2018 to 2021, making positive progress. However, the younger age of myopia is the core difficulty in prevention and control, and continuous efforts are needed to achieve the 2030 prevention and control goals. The prevention and control of myopia in children and adolescents is a systematic project. The guidelines clearly state that we should adhere to a three-level prevention strategy, strengthen primary prevention, promote secondary prevention, and implement tertiary prevention. Among them, in the primary prevention stage, based on the latest progress in the theory of myopia etiology, the guidelines propose specific public health intervention technologies such as monitoring, evaluation and intervention of myopia risk behavior, improvement of visual environment in schools, families, and communities, 2 hours of outdoor activities and 1 hour of physical exercise during the day, and health education for all teachers, students, and parents. Wang Kai, the chief physician of the Ophthalmology Center at Peking University People's Hospital, stated that controlling eye use time and distance, and strengthening outdoor activities under good lighting are the core measures for preventing and controlling myopia in children and adolescents. The guidelines' implementation of 1 hour daytime outdoor activities on campus' and 'tightly grasping 1 hour daytime outdoor activities off campus' have resonated with the industry, and the key to doing these two things well is' home school linkage'. The school arranges a 30 minute break activity in the morning and afternoon, the class "Eye Guard" urges students to leave the classroom within 10 minutes, recommends children and adolescents to walk to school throughout or in stages, encourages parents to go to nature on weekends and holidays, and popularizes myopia prevention and control knowledge through themed class meetings. The guide provides many specific implementation measures and suggestions to improve operability. In the secondary and tertiary prevention stages, the guidelines propose to focus on visual health screening, strengthen myopia grading management, achieve early warning, early detection, and early diagnosis, and establish a myopia risk warning model; Do a good job in grading and correcting myopia, scientifically wear glasses, and for children and adolescents with fundus pathological changes and other complications, parents should promptly take their children to professional medical institutions for diagnosis and treatment by specialized doctors. The 'three mornings' proposed in the guidelines aim to better control the occurrence and development of eye diseases from the source. "Zhang Jianyong, Deputy Chief Physician of the Ophthalmology Department of Guizhou Provincial People's Hospital, believes that adolescent eye health needs medical and preventive coordination and joint care. The guidelines specify that professional institutions should provide timely referral services for children and adolescents who are found to have high myopia and rapid progression of myopia when screening students' vision, in order to achieve the integration of public health and clinical correction. Tao Fangbiao, Dean of the School of Public Health Management at Anhui Medical University, stated that the guidelines introduced this time not only provide promotable tools for professional workers in public health institutions