The highest degree of myopia, in the clinic has seen 2000 degrees of myopia patients, this kind of myopia patients will be very long eye axis, and will produce certain fundus lesions, such as posterior scleral chylomicron and retinal macular cleavage. Corrected visual acuity is usually unsatisfactory, and in some cases the corrected visual acuity may not even reach 0.1, and there is no way to see the maximum scale of the visual acuity chart even with eyeglasses. Ultra-high myopia is related to genetic factors, of course, the acquired bad eye habits, may also lead to high myopia. Once you have hereditary myopia, you should pay close attention to your eye habits and have regular checkups to look for changes in the amount of myopia and to observe fundus lesions to see if there are any fundus lesions associated with high myopia. If there are such problems, it is also necessary to actively take appropriate control measures, or therapeutic measures to be able to.