In the summer and winter, the ophthalmology department of Long March Hospital sees myopic students from all over the world. Once the optometry results come out, we always see parents with either a sad face or a surprised expression: How can my child’s myopia grow so fast? Why does myopia develop so fast in teenagers? One, is the congenital genetic factors, pathological myopia development is caused by abnormal embryonic development, these children are generally born ortho-optic eyes or myopic eyes (normal people should be farsighted at birth), as the eye axis continues to grow myopia gradually deepen. Second, is the bad eye habits and environment: including incorrect sitting posture, prolonged close eye use, lack of outdoor sports, especially the relaxation of eye regulation, excessive burden of schoolwork, etc.. Some parents think that their children may be pseudomyopia, do not care about it, it will be fine after a long time; some children are already very myopic, parents still do not want to face the reality, as long as they do not wear glasses myopia will not grow; some children wear glasses for a while to take off, the adjustment is always in an unstable state; some other Some parents think that astigmatism is harmful to their children’s eyes, so they just buy a pair of glasses to wear at the optician’s store or even at the stall. These are all very harmful to your child’s glasses. How to effectively control the growth of myopia has been the national and global refractive medicine experts research hot spot. Corneal shaping glasses is a new type of youth myopia prevention glasses, is currently a more effective myopia correction technology. It is a high oxygen permeability rigid corneal contact lens, through a physical shaping method, through a reasonable, programmed special design of a rigid corneal shaping lens, so that the cornea in accordance with the reasonable shape we set deformation, through the corneal shape of the change can make the original myopia, astigmatism and other problems of adolescents to get a special effective correction. According to the experimental data from foreign authorities, compared with frame glasses, keratoplasty can control myopia relatively effectively, especially the development of myopia in adolescents. This study is another strong proof that keratoplasty lenses can slow down the development of elongated eye axis in myopic patients. Corneal shaping lenses have been designated by the Ministry of Health as one of the “100 projects of the decade” (the only project in ophthalmology). In the past six or seven years, the Optometry Center of Long March Hospital has fitted hundreds of young myopic patients with keratomileusis glasses, which are customized according to each child’s examination data and can give the most accurate and scientific correction.