目的:比较14种公式计算眼轴长度(AL)超过30.0mm的超长眼人工晶状体(IOL)度数的准确性。
方法:在这项回顾性研究中,ALs>30.0mm的211眼(211例)成功行白内障手术,无并发症。从IOLMaster700获得眼部生物特征参数。使用优化的A常数评估了14个公式:巴雷特通用II(BUII),凯恩,Emmetrypia验证光学(EVO)2.0,PEARL-DGS,T2,SRK/T,Holladay1、Holladay2、Haigis和Wang-KochAL调整公式(SRK/Tmodified-W/K,Holladay1modified-W/K,Holladay1NP-modified-W/K,Holladay2modified-W/K,Holladay2NP-修改-W/K)。平均预测误差(PE)和标准偏差(SD),平均绝对误差(MAE),中位数绝对误差(MedAE),以及±0.25D内的预测误差(PE)百分比,±0.50D,分析±1.00D。
结果:凯恩公式具有最小的MAE(0.43D)和MedAE(0.34D)。±0.25D内的PE百分比最高的是EVO2.0(37.91%)和Holladay1NP修改的W/K公式(37.91%)。Kane公式在±0.50,±0.75,±1.00和±2.00D范围内的PE百分比最高。BUII之间在±0.25,±0.50±0.75和±1.00D范围内的PE没有显着差异,凯恩,EVO2.0和Wang-KochAL利用科克伦Q检验调整公式(P>.05)。Holladay2modified-W/K公式的远视结局百分比最低(29.38%)。
结论:BUII,凯恩,EVO2.0和Wang-KochAL调整公式在ALs>30.0mm的眼睛中具有相当的IOL功率计算精度。
OBJECTIVE: To compare the accuracy of 14 formulas in calculating intraocular lens (IOL) power in extremely long eyes with axial length (AL) over 30.0 mm.
METHODS: In this retrospective study, 211 eyes (211 patients) with ALs > 30.0 mm were successfully treated with cataract surgery without complications. Ocular biometric parameters were obtained from IOLMaster 700. Fourteen formulas were evaluated using the optimized A constants: Barrett Universal II (BUII), Kane, Emmetropia Verifying Optical (EVO) 2.0, PEARL-DGS, T2, SRK/T, Holladay 1, Holladay 2, Haigis and Wang-Koch AL adjusted formulas (SRK/Tmodified-W/K, Holladay 1modified-W/K, Holladay 1NP-modified-W/K, Holladay 2modified-W/K, Holladay 2NP-modified-W/K). The mean prediction error (PE) and standard deviation (SD), mean absolute errors (MAE), median absolute errors (MedAE), and the percentage of prediction errors (PEs) within ± 0.25 D, ± 0.50 D, ± 1.00 D were analyzed.
RESULTS: The Kane
formula had the smallest MAE (0.43 D) and MedAE (0.34 D). The highest percentage of PE within ± 0.25 D was for EVO 2.0 (37.91%) and the Holladay 1NP-modified-W/K formulas (37.91%). The Kane
formula had the highest percentage of PEs in the range of ± 0.50, ± 0.75, ± 1.00, and ± 2.00 D. There was no significant difference in PEs within ± 0.25, ± 0.50 ± 0.75 and ± 1.00 D between BUII, Kane, EVO 2.0 and Wang-Koch AL adjusted formulas (P > .05) by using Cochran\'s Q test. The Holladay 2modified-W/K
formula has the lowest percentage of hyperopic outcomes (29.38%).
CONCLUSIONS: The BUII, Kane, EVO 2.0 and Wang-Koch AL adjusted formulas have comparable accuracy for IOL power calculation in eyes with ALs > 30.0 mm.