There are two main causes of high myopia, one is the excessive curvature of the refractive system consisting of the cornea and lens, and the other is because the length of the eye axis exceeds the normal range, both of which are caused by abnormalities in the eye tissue structure. No matter what the cause of high myopia, to improve vision can choose to wear glasses or surgery, in addition to life should develop good eye habits, delaying the deepening of myopia. I, wearing glasses 1, frame glasses: is a common optical corrector in life, is a concave lens, through refraction to change the path of light, so that the light falls on the retina; 2, corneal contact lenses: in life is often called contact lenses, correction principle and frame glasses, but its direct contact with the cornea, compared to the frame glasses to reduce the problem of magnification change. Second, surgical treatment refractive surgery corrects myopia by changing the state of abnormal refractive structures. One type of refractive surgery is keratoconus, which corrects by changing the shape of the cornea. The other is by implanting an artificial lens (ICL IOL implantation for crystalline eyes), which changes the path of light refraction and the light is refracted at the center of the retina, correcting myopia. In the case of myopia caused by an excessively long eye axis, posterior scleral reinforcement can be used to delay the deepening of myopia. In daily life, you should not use your eyes with fatigue. You should take a break after using your eyes for more than one hour, and do eye exercises regularly to move your eye muscles and relieve eye fatigue. Use your eyes in an environment with appropriate light, avoid using your eyes in an environment with too much light or too dark. Regular outdoor exercise is good for relaxing your eyes, and your daily diet can be moderate with carrots, blueberries and other foods that help protect your eyes.