短眼轴眼中5种人工晶状体计算公式比较  

Evaluation of intraocular lens powers in eyes with short axial lengths

作　　者：沈胤忱[1] 王于蓝[1] 朱弼珺[1] 徐娴[1] 孙勇[1] 郑高欣[1] 陈凤娥[1] 许迅[1] SHEN Yin-chen;WANG Yu-lan;ZHU Bi-jun;XU Xian;SUN Yong;ZHENG Gao-xin;Chen Feng-e;XU Xun(Department of Ophthalmology, Shanghai First People’s Hospital, Shanghai Jiao Tong University, Shanghai 200080, China)

机构地区：[1]上海交通大学附属第一人民医院眼科,上海200080

出　　处：《上海交通大学学报（医学版）》2017年第1期26-29,共4页Journal of Shanghai Jiao tong University:Medical Science

基　　金：“十二五”国家科技重大专项(2011ZX09302-007-02);国家自然科学基金(81273424,81170862);上海市科学技术委员会科研计划项目(16140901003)~~

摘　　要：目的·比较SRK-Ⅱ、SRK/T、Haigis、Hoffer Q、Holladay这5种人工晶状体屈光度计算公式在预测短眼轴眼白内障患者术后屈光度时的准确性。方法·纳入眼轴<22 mm的白内障患者共42例55眼,行白内障超声乳化联合人工晶状体植入术。术前用IOL Master测量角膜曲率、前房深度和眼轴长度,运用SRK-Ⅱ、SRK/T、Haigis、Hoffer Q、Holladay公式计算术后预期屈光度。术后3~6个月随访,验光测量患者术后实际屈光度,比较实际屈光度和预期屈光度的误差值。结果·55眼中用SRK-Ⅱ、SRK/T、Haigis、Hoffer Q、Holladay公式计算术后预期屈光度时,分别有28、26、27、20、24眼实际屈光度发生远视偏移,27、29、28、35、31眼发生近视偏移。发生远视偏移的误差值间差异无统计学意义(F=1.351,P=0.225);发生近视偏移的误差值间差异有统计学意义(F=6.276,P=0.000),Hoffer Q和Holladay公式误差值较小,Haigis公式得出的术后实际屈光度发生近视偏移的误差值显著大于其他各公式(P=0.000)。此外,各公式绝对误差值≤0.25 D的分别有11、12、11、21、16眼,但5种公式绝对误差值的总体分布差异无统计学意义(P=0.163)。结论·计算短眼轴眼白内障患者术后预期屈光度,Hoffer Q和Holladay公式预测的准确性较好,Haigis公式较其他公式有一定引起近视的倾向。Objective·To evaluate the predictive accuracy of SRK-Ⅱ,SRK/T,Haigis,Hoffer Q,and Holladay formulas on postoperative refraction errorvalues in cataract patients with short axial length eyes.Methods·Fifty-five short axial length eyes of42patients with cataract were recruited.All the patientsunderwent phacoemulsification surgery and posterior chamber intraocular lens implantation.Corneal curvature,anterior chamber depth and axial length weremeasured by IOL Master before the surgery.SRK-Ⅱ,SRK/T,Haigis,Hoffer Q,and Holladay formulas were adopted to calculate predictive refraction afteroperation.Three to six months after operation follow-up visits were carried out to measure the refractive power of all the eyes and calculate the differencesbetween the actual refraction powers and the predicted.Results·Among the55eyes,there were28,26,27,20,and24eyes shifting to hyperopias and27,29,28,35,and31eyes to myopia according to SRK-Ⅱ,SRK/T,Haigis,Hoffer Q,and Holladay formula,respectively.The values of postoperative myopic shiftwere statistically different among the5formulas(F=6.276,P=0.000),but those of the postoperative hyperopic shift were not(F=1.351,P=0.225).Hoffer Qand Holladay formula showed good accuracy.Haigis formula leaded to more myopia(P=0.000).In addition,there were11,12,11,21,and16eyes with lessthan0.25D of absolute errors calculated by SRK-Ⅱ,SRK/T,Haigis,Hoffer Q,and Holladay formula,respectively.However,the distribution of the absoluteerrors of5formulas was not statistically significant(P=0.163).Conclusion·In short axial length eyes,Hoffer Q and Holladay formula showed a goodaccuracy.Haigis formula leads to more myopia.

关 键 词：人工晶状体计算公式 白内障 短眼轴眼 

分 类 号：R779.66[医药卫生—眼科]