Myopia of more than 200 degrees belongs to mild poor vision, with bare eye vision of about 0.4-0.5. 200 degrees of myopia occurs in children and adolescents, and the following treatment options can be adopted: i. First, a visual health file should be established, and vision and degrees should be reviewed every six months to a year, and lenses should be replaced according to changes in degrees. Second, while wearing frame glasses, you can also choose low concentration atropine drops for comprehensive treatment. Some patients can also consider choosing keratoplasty lenses, which can play a role in delaying the deepening of myopia. Four, maintain one and a half hours of outdoor activities every day, no less than 14 hours a week to bathe in the sun. Reduce the frequency and duration of close eye use. Use electronic products in a controlled manner. Children under 6 years old should not use electronic products as much as possible. Seven, ensure sufficient sleep every day, no less than 10 hours for elementary school students and no less than 8 hours for secondary school students. Adult patients can be treated with glasses correction and laser surgery.