In recent years, the prevalence of myopia among adolescents in China has remained high, and poor vision has become an important factor affecting the healthy development of adolescents. 2004 joint survey results of the Ministry of Health and the Ministry of Education showed that the detection rate of poor vision among students in China reached 26.96% in elementary school, 53.43% in junior high school, 72.80% in high school, and 77.95% in university. The total number of myopia patients in the country has exceeded 300 million, and myopia patients have accounted for 33% of the world, while China’s youth myopia rate has ranked second in the world, the number of myopia in the world’s first. Moreover, studies have shown that myopia among young people in China tends to be at a younger age. It is reported that myopia is on the rise among younger children aged 7 to 9 years old, and many children start to develop myopia before or early in their school years. The rapid increase in the prevalence of myopia among primary and secondary school students has caused widespread concern among all sectors of society. In the past decade, a large number of myopia prevention and control products also came into being, mixed, it is difficult to distinguish the authenticity, and false, exaggerated propaganda, such as “wear” x x mirror “for half a year, vision improved by 4 lines, and do not wear glasses can also see clearly”; wear “x x mirror “myopia well”; “not the length of the number, reduce the number of glasses”; “signed a one-year trial agreement, the commitment to refund the invalid” and so on abound, resulting in many students and parents due to the lack of correct eye care knowledge, ignorance, prejudice and some of the wrong social As a result, many students and parents are swayed by ignorance, prejudice and some misguidance in the society due to the lack of proper eye care knowledge. So what is the right way to prevent and control myopia? Since adolescents are in the stage of visual development of both eyes and are under a greater eye load than adults, the occurrence and development of myopia in adolescents has its own characteristics. Moreover, the occurrence of myopia in children is closely related to the anatomy and physiology of their eyes, their eye habits, their physical condition, and genetic factors. For example, the causes of myopia are refractive, curvature, axial, and regulatory factors, and different measures should be taken to address these causes. For example, for over-regulation myopia, progressive lenses, ciliary muscle paralyzing agents, and negative reduction lenses are available; while axial myopia is more suitable for prevention and control using RGP and keratoplasty lenses; current research has found that many myopia regulation problems are not over-regulation, but rather lagging regulation, and the method to choose is to strengthen the regulation training rather than weakening relaxation, and for these patients if they blindly control For these patients, if they blindly control and weaken the regulation function, not only will they fail to achieve the purpose of myopia prevention and control, but they will also aggravate their symptoms, increase their myopia and even cause strabismus or refractive error. This is not only a waste of money and time for parents and students, but also causes irreparable damage to the vision of young people. At present, the optometry clinic of the Fourth Hospital of Harbin Medical University, as the first myopia prevention and control hospital for young students in the province, takes the lead in advocating the concept of “individualized myopia prevention and control”. The so-called “individualized myopia prevention and control” is based on the latest theoretical advances in the causes, formation process and correction of myopia. A standardized and comprehensive eye examination is used. The examination includes not only refractive state examination, but also systematic eye examination, binocular visual state examination, and even selective use of corneal topography, synoptic machine, contrast sensitivity, A ultrasound and other auxiliary examinations to clarify the causes and nature of myopia, and to give targeted “individualized” protective measures for different causes and nature of myopia. In order to effectively reduce the incidence of myopia in adolescents and prevent and treat other ophthalmic disorders, protective measures should be taken. We use formal examination and diagnosis to determine whether the patient has true or pseudo-myopia; if it is true myopia, we must distinguish whether it is axial, hypermetropic, lagging or refractive index myopia, and take effective preventive and control measures to achieve twice the result with half the effort. The Optometry Clinic of the Fourth Hospital is a leader in the field of optometry in our province in terms of equipment and technology. With years of clinical experience in myopia prevention and control and in line with advanced hospitals in China and abroad, the clinic has established a set of effective measures for diagnosis, identification and individualized prevention and control of myopia, including the establishment of a systematic refractive development file system for each student, the establishment of a follow-up system for students with refractive errors, regular optometry We have established a set of effective myopia diagnosis, identification and individualized prevention and control measures, including the establishment of a systematic refractive development record system for each student, a follow-up system for students with refractive errors, and a system of regular optometric lectures, publicity and consultation, with a view to helping young students and their parents establish a correct concept of eye care and scientific and systematic myopia prevention and control.