High myopia usually refers to myopia above 600 degrees. With the deepening of myopia, the axial length will gradually become longer, resulting in a series of eye complications. Such as posterior scleral staphyloma, vitreous opacity, posterior vitreous detachment, high myopia fundus lesions and so on. With the deepening of myopia, the retina becomes more and more unstable, and people with high myopia do not recommend strenuous exercise. If you do moderate exercise in fitness activities, it is generally not a big problem, but strenuous exercise such as playing basketball and football can easily lead to serious complications such as retinal detachment and vitreous hemorrhage, so it is not recommended to do the above exercise. You can consider trying some gentle fitness methods, such as walking.