Posterior scleral reinforcement for high myopia can effectively control the progression of myopia and also prevent degeneration of the peripheral retina, which is generally effective, but the specific prognosis of the surgery is related to the patient’s condition. Myopia is a common type of refractive error, mainly due to the growth of the anterior and posterior diameters of the eyeball, which makes the light entering the eye through the refractive medium after refraction and then projected in front of the retina. If the patient has too much myopia and the eye axis is lengthened, the posterior sclera may expand backward, which can be treated by posterior scleral reinforcement. Posterior scleral reinforcement is a silicone strip that is applied behind the sclera in patients with high myopia to prevent further increase in myopia. It is recommended that patients with high myopia seek prompt medical attention to evaluate their condition and follow their doctor’s instructions.