Four levels of control: Level 1: children with myopia, no glasses: according to age and eye habits, when reading and writing for more than 20 minutes, use K-type telephoto lenses or automatic telephoto lenses before bedtime; Level 2: 200-300 degrees of myopia, fast development, other methods of poor results: usually do not wear glasses: according to age, development rate and the presence of astigmatism, choose one of (patch telephoto lenses, myopia sensitive lenses) Grade 3: Myopia 400 degrees-600 degrees, still developing or developing fast, usually wear corrective lenses: take one of (patch distanting lenses, automatic distanting lenses, myopia resonance lenses) + myopia comprehensive control lenses; Grade 4: Myopia 600 degrees or more, still developing, wear undercorrected myopia lenses or low corrected myopia lenses: according to the development speed, with or without fundus degeneration, with or without convex eyes, in (myopia sensitive lenses, automatic distanting lenses, myopia comprehensive control lenses) Myopia Optimizer