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With the development of posterior chamber phakic intraocular lenses implantation and the constant improvement of the implantable collamer lens(ICL), ICL V4c implantation has become one of the main methods for correcting moderate and high myopia. Vault is an important indicator to evaluate the security of posterior chamber intraocular lens implantation. In recent years, optimizing surgical procedures to obtain the ideal vault in ICL V4c implantation surgery has become a research hotspot. This paper aims to provide help for improving surgical safety by summarizing and analyzing the optimized programs of ICL V4c implantation surgery. The focus will be on preoperative examination, intraoperative surgical design, and postoperative follow-up.