摘要目的:分析有晶状体眼后房型人工晶状体(ICL)植入术后拱高的影响因素。方法:回顾性研究。收集苏州大学附属理想眼科医院2019年6月至2019年10月行ICL植入术的近视者81例(81只眼)的临床资料。术后随访3个月，将眼屈光状态(等效球镜度)、眼轴长度、前房深度、白到白、沟到沟、人工晶状体直径以及人工晶状体直径与白到白和沟到沟的差值作为自变量进行线性回归分析(步进法)。结果:ICL植入术后视力(logMAR)为-0.047±0.044，较术前1.531±0.254显著提高( t＝55.110， P<0.05)。术后拱高与前房深度、ICL直径、3种方法测量白到白直径、垂直及水平沟到沟直径、ICL直径与白到白直径的差值、ICL直径与垂直沟到沟直径的差值、ICL直径与水平沟到沟直径的差值均呈显著相关性( r＝0.306、0.533、0.414、0.410、0.418、0.308、0.334、0.262、0.332、0.475，均 P<0.05)。线性回归结果显示，影响术后拱高的因素有前房深度、ICL直径和ICL直径与水平沟到沟直径的差值( Beta＝0.203、0.321、0.317， P＝0.039、0.002、0.002)。 结论:有晶状体眼ICL直径、ICL直径与水平沟到沟的差值以及前房深度三者是决定ICL植入术术后拱高的关键因素。

abstractsObjective:To analyze the influence factors of postoperative vaulting after implantable collamer lens (ICL) implantation.Methods:This was a retrospective study. The clinical data of 81 eyes of 81 patients with myopia from Jun. 2019 to Oct. 2019 in Lixiang Eye Hospital of Soochow University were analysed. All patients underwent ICL implantation. The follow-up time was 3 months. The spherical equivalent(SE), axial length(AL), anterior chamber depth(ACD), three methods to measure white to white(WTW), horizontal sulcus to sulcus(STS), vertical STS, ICL diameter, and the difference between ICL diameter compared with white to white (D-WTW) and the difference between ICL diameter compared with horizontal or vertical sulcus to sulcus (D-STS-H, D-STS-V) as independent variables were analyzed by linear regression analysis(stepwise method).Results:Visual acuity(logMAR) after ICL implantation was -0.047±0.044, which was better than the 1.531±0.254 before ICL implantation ( t=55.110, P<0.05). Spearman correlation analysis showed that vaulting after ICL implantation was significantly correlated with ACD, ICL diameter, WTW measured by all three devices, horizontal STS, and D-WTW measured by Pentacam and IOLmaster, horizontal and vertical D-STS ( r=0.306, 0.533, 0.414, 0.410, 0.418, 0.308, 0.334, 0.262, 0.332, 0.475; P<0.05 for all). Linear regression results showed that factors affecting postoperative vaulting were ACD, ICL diameter, and D-STS-H ( Beta=0.203, 0.321, 0.317; P=0.039, 0.002, 0.002). Conclusion:The ICL diameter, the difference between ICL diameter and horizontal sulcus to sulcus and the ACD are the key factors to determine the vaulting after ICL implantation.