The steps of the examination are as follows: 1. Try glasses to correct your vision and see the best vision in the left eye with glasses; 2. If there is a significant improvement in vision with glasses there is value for surgery; 3. Ultrasound to check the size of the eye. The steps to check the fundus of the eye for retinal degeneration and fissure treatment by triple-lens are as follows: 1. Because your myopia may be progressive myopia, posterior scleral reinforcement should be done first to prevent further elongation of the eye; 2. Intraocular IOL implantation will be performed after one month; 3. The left eye is not suitable for laser surgery, which is usually performed at a degree below -12D.