Severe myopia in the eyes can lead to blindness. Eyes that are nearsighted, generally higher than 600 degrees are called highly myopic eyes, and myopia of more than 1,000 degrees is considered more severe myopia. Some people have even higher myopia, which may reach 2,000-3,000 degrees, and up to 4,000 degrees of myopia, which can often lead to eye blindness when myopia is more severe. The cause of eye blindness is mainly due to the high degree of myopia in the eye and the development of fundus lesions in highly myopic eyes. In severe cases, for example, there are splits in the macula, hemorrhages in the macula, retinal fissures, and retinal detachment, and these diseases can cause a dramatic loss of vision. This vision loss is usually irreversible and even after surgical treatment, it is difficult to restore the vision to normal levels. Myopia can easily lead to blindness. For highly myopic eyes, it is important to pay attention to maintaining reasonable eye habits and controlling the development of myopia. If your myopia is growing too much, go to the hospital in time for a review, mainly to check your fundus. Pathological myopia should be intervened and treated early to avoid serious complications.