有晶状体眼悬浮型后房型人工晶状体植入治疗高度近视

目的观察和探讨悬浮型后房型有晶状体眼人工晶状体（PC-PRL）植入术治疗高度近视的效果及安全性。方法回顾性病例研究。38例（68眼）高度近视患者（近视度为-11.25～-20.00 D）植入PC-PRL。术前及术后1周、1个月、3个月、6个月对患者的视力、眼压、角膜内皮细胞计数、前房深度及PC-PRL位置进行观察。采用重复测量方差分析比较PIOL术后不同时间段的等效球镜的差异。结果术后6个月时，所有患者UCVA均≥4.7，达到或高于术前BCVA（F=6.813，P<0.01）；术后7例（10眼）早期眼压升高，经降眼压治疗后眼压正常；术后前房深度较术前有所下降（F=32.952，P＜0.01），小梁虹膜水平/垂直夹角、房角开放距离、拱高均无明显变化（P＞0.05），未见虹膜膨隆，房角阻滞；术后PIOL位置稳定，与晶状体距离稳定。结论PC-PRL植入术治疗高度近视效果确切，预测性好，手术安全。

Posterior chamber phakic refractive lens implants for high myopia

Objective To investigate the efficacy and safety of posterior chamber phakic refractive lens （PC-PRL） implants for high myopia.Methods A retrospective case study of phakic intraocular lens implantation was carried out on high myopia patients.Thirty-eight patients （68 eyes） with high myopia （-11.25 to-20.00 D） were implanted with PC-PRLs.Preoperative and postoperative visual acuity,intraocular pressure,corneal endothelial cell count,anterior chamber depth and intraocular lens position were observed and analyzed.The differences between postoperative equivalent spherical errors were analyzed in different refractive error groups with repeated measure ANOVA.Results All patients gained uncorrected visual acuity ≥4.7 in 6 months,which was equal to or better than preoperative best corrected visual acuity.Seven patients （10 eyes） had early high postoperative intraocular pressure.The intraocular pressure returned to a normal level after treatment.All patients had decreased anterior chamber depth postoperatively （F=32.952,P＜0.01）.Horizontal/vertical trabecular iris angle,angle opening distance,and arch height did not significantly change （P＞0.05） in all implanted eyes.No iris bombe or angle block was detected in any patient.Postoperative IOL position and distance from the lens remained stable during the follow-up period.Conclusion Posterior chamber phakic refractive lens implantation for high myopia is a precise and safe procedure with good predictability.