Myopia can be divided into low myopia, which is less than 300 degrees, moderate myopia, which is between 300 and 600 degrees, and high myopia, which is greater than 600 degrees, and high myopia, which is 750 degrees. In high myopia, it is important to avoid strenuous activities in daily life, because the eye axis of high myopia is already overly elongated, which can cause degenerative changes in the fundus, and strenuous activities can easily lead to retinal fissures and retinal detachment in the fundus. The safest and most effective treatment for high myopia is still optometry, which can be done by obtaining the exact prescription through accurate optometry, and considering frame glasses and contact lenses. In addition, surgical treatment is also available, including laser surgery and IOL implantation for crystalline eyes. The specific choice of surgery should be decided by a professional ophthalmologist after a detailed eye examination.