目的：探讨超高度近视有晶状体眼后房屈光晶状体植入术后拱高的影响因素。

方法：回顾性病例研究。选取2019-01/2021-01于我院行PC-PRL植入术的超高度近视患者40例77眼。术后随访至少2a，评估裸眼视力(UCVA)、最佳矫正视力(BCVA)和中央前房深度(ACD)、前房容积(ACV)、前房角(ACA)、晶状体厚度及术后拱高等眼前节参数，分析术后拱高的影响因素。

结果：PC-PRL植入术后纳入患者UCVA和BCVA均较术前显著改善(P<0.001)，术后2a平均安全指数(术后BCVA/术前BCVA)为1.36±0.32，平均有效指数(术后UCVA/术前BCVA)为1.23±0.31。术后2a拱高与术前ACD、术前ACV、术前ACA及晶状体厚度均具有一定的相关性，其中术前ACV和晶状体厚度对术后2a拱高具有显著影响。

结论：超高度近视PC-PRL植入术安全有效，可显著改善视力，术前ACV和晶状体厚度是影响术后拱高的重要因素。

METHODS: Retrospective case study. A total of 40 patients with super high myopia(77 eyes)who underwent PC-PRL implantation in the Haixiang Eye Hospital from January 2019 to January 2021 were selected. They were followed up for at least 2a, postoperative anterior segment parameters, such as the uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA), central anterior chamber depth(ACD), anterior chamber volume(ACV), anterior chamber angle(ACA), lens thickness and vault were evaluated, and then the influencing factors of postoperative vault were analyzed.

RESULTS: The UCVA and BCVA of the patients significantly improved after PC-PRL implantation(P<0.001). Average safety index(postoperative BCVA/preoperative BCVA)was 1.36±0.32, and average effective index(postoperative UCVA/preoperative BCVA)was 1.23±0.31 in 2a after surgery. The vault in 2a after surgery was correlated with preoperative ACD, ACV, ACA and lens thickness, and the preoperative ACV and lens thickness had significant impact on vault in 2a after surgery.

CONCLUSIONS: The PC-PRL implantation is safe and effective in super high myopia, and it can significantly improve visual acuity. Furthermore, preoperative ACV and lens thickness are important influencing factors of postoperative vault.