Myopia of 800 degrees can be corrected, and the commonly used surgical correction methods are laser surgery and lens implantation. However, the growth of the eye axis or the pathological changes occurring in the fundus are irreversible. Myopia up to 800 degrees, if you are already an adult, you can consider laser surgical treatment, but the thickness of the cornea should be up to standard, and the condition of the fundus should also be checked, for example, the thickness of the cornea should be retained for at least two thirds of the cornea after cutting. In addition, the periphery of the fundus should be lined up for pathological changes such as lacunae and areas of degeneration, which can increase the risk of retinal detachment if present. If one’s condition does not allow for laser surgery, such as a thin cornea, one may also consider giving lens implantation for lens removal. For people who want to correct their myopia, it is recommended to visit the ophthalmology department of a regular hospital to determine which method is suitable with the help of a doctor, and after the surgery, they need to maintain good eye habits, as well as to check the fundus of the eye on a regular basis.