眼前节分析系统在有效晶状体位置及白内障术后屈光效果预测中的作用  

Research on prediction of effective lens position and refraction status after cataract surgery by anterior segment analysis system

作　　者：李晨[1] LI Chen(Department of Ophthalmology,the First Affiliated Hospital of Soochow University,Suzhou 215000,Jiangsu Province,China)

机构地区：[1]苏州大学附属第一医院眼科,江苏省苏州市215000

出　　处：《眼科新进展》2021年第10期969-973,共5页Recent Advances in Ophthalmology

基　　金：苏州市“科教兴卫”青年科技项目(编号KJXW2019008)。

摘　　要：目的应用Sirius系统预测有效晶状体位置(ELP),探讨影响ELP变化的因素及对术后屈光效果的影响。方法对苏州大学附属第一医院行白内障手术的103例(103眼)白内障患者资料进行回顾性分析。用Sirius系统和LS900对患者进行眼部生物学参数测量,用Sirius计算预测晶状体位置(PLP)。术后3个月,用Sirius系统采集的Scheimpflug图像测量ELP。采用Pearson相关性分析和线性回归分析人工晶状体(IOL)实际位置与其他参数的关系。结果按晶状体位置预测误差(LPPE)分组后,LPPE A组和LPPE B组患者的屈光误差(RE)差异有统计学意义(P<0.001),而绝对屈光误差(ARE)差异无统计学意义(P=0.716)。按年龄分组后,年龄A组、年龄B组、年龄C组患者LPPE整体比较差异有统计学意义(P=0.046);年龄C组与年龄A组患者的LPPE差异有统计学意义(P=0.014)。年龄A组、年龄B组、年龄C组患者术后RE和术后ARE整体比较差异均无统计学意义(均为P>0.05)。按照PLP分组后,PLP A组和PLP B组患者的LPPE和术后RE差异均有统计学意义(均为P<0.05),而术后ARE差异无统计学意义(P=0.116)。按照前房深度(ACD)分组后,ACD A组和ACD B组患者的LPPE、术后RE和术后ARE差异均无统计学意义(均为P>0.05)。按照眼轴长度(AL)分组后,短AL组、正常AL组和长AL组患者的LPPE、术后RE和术后ARE整体比较差异均有统计学意义(均为P<0.05);长AL组和正常AL组患者的LPPE、术后RE和术后ARE,以及长AL组和短AL组患者的术后RE和术后ARE差异均有统计学意义(均为P<0.05)。相关性分析结果显示,患者PLP与ELP(r=0.637,P<0.001)、ACD与ELP(r=0.526,P<0.001)、AL与ELP(r=0.505,P<0.001)、术前ACD+晶状体厚度(LT)/2与ELP(r=0.659,P<0.001)均呈正相关。通过线性回归分析得到改良预测公式ELP术后=0.485×(ACD术前+LT/2)+0.461×PLP。结论年龄、PLP、AL、LT等因素对LPPE、术后RE均有影响。改良的回归公式为临床预测ELP和术后RE提供了理论依据�Objective To predict the effective lens position(ELP)with Sirius system and evaluate the factors influencing the change of ELP and its influence on postoperative refraction status.Methods Retrospective analysis was carried out on 103 cataract patients(103 eyes)from the First Affiliated Hospital of Suzhou University who underwent the cataract surgery.Ocular biometric measurement was conducted with Sirius and LS900.The predicted lens position(PLP)was calculated by Sirius.Three months after the surgery,the Scheimpflug images collected by Sirius were used to measure the ELP.Pearson’s correlation analysis and linear regression analysis were used to determine the correlation between positions of intraocular lens(IOL)and other parameters.Results When grouping according to lens position prediction error(LPPE),there was significant difference in refraction error(RE)between LPPE A group and LPPE B group(P<0.001),but there was no significant difference in absolute refractive error(ARE)(P=0.716).When grouping by age,there was significant difference in LPPE among age group A,age group B and age group C(P=0.046).There was significant difference in LPPE between age group C and age group A(P=0.014).There were no significant differences in postoperative RE and postoperative ARE among age group A,age group B and age group C(both P>0.05).When grouping according to PLP,there were significant differences in LPPE and postoperative RE between PLP group A and PLP group B(both P<0.05);there was no significant difference in postoperative ARE(P=0.116).When grouping according to anterior chamber depth(ACD),there was no significant difference in LPPE,postoperative RE and postoperative ARE between ACD A group and ACD B group(all P>0.05).After grouping according to axial length(AL),there were significant differences in LPPE,postoperative RE and postoperative ARE among short AL group,normal AL group and long AL group(all P<0.05);there were significant differences in LPPE,postoperative RE and postoperative ARE between the long AL group and nor

关 键 词：白内障 有效晶状体位置 绝对屈光误差 

分 类 号：R776.1[医药卫生—眼科]