1, students myopia 5 major characteristics 1, the main reason is to look close, especially watching TV computer book. Professor Xu Guangdi, head of the Chinese Student Myopia Expert Group, also pointed out that nearness is the main motivation for the occurrence and development of myopia. 2. Most of them are mixed myopia, i.e., mixed with axial myopia, which is the main reason why students must go to the hospital for dilated eye examinations to remove tension myopia before myopia can be diagnosed. 3, the development of faster, an average of 100 ~ 150 degrees per year, mainly with “look close” too many opportunities, the accumulation of myopia accumulated during the day is not eliminated. The occurrence and development of myopia in students is mainly related to the accumulation of various near-looking activities (such as reading, writing and computer games) during the day. When looking at the near, both eyes collect inward and compress the eye axis to become longer. At the same time, posterior defocus refraction of the eye occurs, which further induces the eye axis to lengthen. For every 1mm extension of the eye axis, about 300 degrees of myopia is caused. 4, general myopia instrument control is ineffective: partly because most myopia instruments are not farsighted, can not offset the accumulation of myopia factors; another part of the reason is that the existing farsighted instruments need to be used for a long period of time, it is difficult for students to do. 5, need long-term persistence to get good results: as we all know, myopia is a long-term formation, its prevention and treatment also need long-term persistence to be effective. However, so far there is almost no myopia instrument can attract students to consciously adhere to the long-term use, so the long-term effect is not good, which is perhaps the main reason why the majority of myopia instrument effect is not good. Second, students myopia is mainly due to the accumulation of myopia – terminal control method to eliminate the accumulation of myopia 1, students myopia occurrence, development is mainly related to the accumulation of a variety of near activities during the day (such as reading, writing, computer games, etc.). 2. When looking at the near, both eyes collect inward and compress the eye axis to become longer. At the same time, the posterior defocus refraction of the eye occurs, which further induces the eye axis to lengthen. For every 1mm extension of the eye axis, about 300 degrees of myopia is caused. 3. Therefore, offsetting the accumulation of “nearness” is the most fundamental way to control myopia in students. 4. A joint study by experts from the United States, the United Kingdom, and Switzerland found that the most effective way to control myopia in students is to actively remove the accumulation of myopic activities before bedtime (i.e., before the end of daily near-gazing activities). In this regard, we propose the terminal myopia control method. 3. Myopia automatic hyperopia mirror is the most ideal glasses to prevent and control students’ myopia because: automatic hyperopia mirror is the best super hyperopia mirror at present, which can provide 300-500 degrees of hyperopia effect in a short time, so it is especially suitable for terminal myopia control method to control myopia development, and also solves the problem that hyperopia mirror needs to be used for a long time in the past, so that students only need to train for 10 minutes before going to bed every day to really To do happy myopia control.