Any kind of medical supplies can not have 100% absolute safety. The more high technology products are used, the more we must enhance the science, remove the blindness, especially the professional medical and technical personnel should pay attention to the duties of medical workers, cherish the patient’s eyes, do their best to eliminate all kinds of hidden dangers, to achieve a relatively high level of safety. Three years ago there was a so-called “ortho-lens fiasco” in China, there were some cases of corneal infection caused by improper use, serious cases of corneal transplantation, resulting in many people have doubts about this technology. In the United States, Europe, Australia and other countries, the occurrence of such serious complications is very rare, compared with the soft contact lens-induced corneal infection, the proportion of ortho-lenses caused by relatively low. Therefore, for this “Chinese phenomenon”, most of the experts attending the Global Orthokeratology Congress believe that the main reason is that the technical quality of Chinese dispensing personnel is too low, the supervision and guidance of optometrists is insufficient, many unqualified institutions and personnel also sell ortho-lenses as ordinary commodities, and ophthalmologists are not strictly Ophthalmologists are not strictly trained, and the training and education of patients are lacking, so there is insufficient awareness of this technology and blind fitting and blind use. In the last two years, due to the high attention of the medical and health administration, the personnel and equipment conditions of the dispensing institutions have been certified, the products and processing and marketing companies have been more strictly controlled and managed, and the professional physicians have continued to improve their dispensing management skills. At present, the ortho-lenses dispensed in major hospitals and optometric centers with excellent conditions are basically safe and effective.