AIM:To investigate the safety and efficacy of the cake-type posterior scleral reinforcement surgery for the treatment of high myopia.METHODS:Cake-type posterior scleral reinforcement surgery was performed in 20 cases (39 eyes) with high myopia,and the follow-up lasted for 3 years.RESULTS:There was no progressive extension of the eye axis in patients of postoperation compared to the preoperative.The diopter of myopia compared with the preoperative,the difference also was not significant.In addition,corrected visual acuities of the patients were improved at varying degrees.CONCLUSION:The cake-type posterior scleral reinforcement surgery has few complications.It can stabilize axial length,stabilize and improve vision.It has been proved to be a safe and effective way to prevent and treat high myopia.