High myopia implantation lens surgery is what is usually referred to as intraocular refractive surgery. The common complications or hazards of the surgery include the following. First, postoperative infection, because the surgery is an invasive operation, so the risk cannot be completely avoided. Second, intraoperative hemorrhage, which is mainly due to changes in the intraocular environment, thus causing hemorrhage in the retina or choroid. Third, secondary glaucoma occurs after surgery, mainly due to pupillary blockage or residual sodium hyaluronate after IOL implantation. These complications are relatively small, preventable and controllable, and can be completely controlled after they occur, so there is no need to worry about surgical complications at all. If the expectations for the surgery are too high, it is recommended to choose carefully.