Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan.
JINS Endowed Research Laboratory for Myopia, Keio University School of Medicine, Tokyo, Japan.
Sci Rep. 2024 Nov 4;14(1):26560. doi: 10.1038/s41598-024-78266-w.
This retrospective study compared postoperative prediction errors of recent formulas using standard- or total keratometry (K or TK) for intraocular lens (IOL) power calculation in post-myopic LASIK patients. It included 56 eyes of 56 patients who underwent uncomplicated cataract surgery, with at least 1-month follow-up at Keio University Hospital in Tokyo or Hayashi Eye Hospital in Yokohama, Japan. Prediction errors, absolute errors, and percentage of eyes with prediction errors within ± 0.25 D, ± 0.50 D, and ± 1.00 D were calculated using nine formulas: Barrett True-K, Barrett True-K TK, Haigis-L, Haigis TK, Pearl-DGS, Hoffer QST, Hoffer QST PK, EVO K, and EVO PK. Statistical comparisons utilized Friedman test, Conover's all-pairs post-hoc, Cochran's Q, and McNemar post-hoc testing. Root-Mean-Square Error (RMSE) was compared with heteroscedastic testing. Barrett True-K TK had the lowest median predicted refractive error (-0.01). EVO PK had the smallest median absolute error (0.20). EVO PK had the highest percentage of eyes within ± 0.25 D of the predicted value (58.9%), significantly better than Haigis-L (p = 0.047). EVO PK had the lowest mean RMSE value (0.499). The EVO PK formula yielded the most accurate IOL power calculation in post-myopic LASIK eyes, with TK/PK values enhancing accuracy.
本回顾性研究比较了使用标准或总角膜曲率计（K 或 TK）进行 IOL 屈光力计算的近期公式在近视 LASIK 术后患者中的术后预测误差。它包括 56 名患者的 56 只眼，这些患者在日本东京庆应大学医院或横浜林眼科医院接受了单纯白内障手术，至少随访 1 个月。使用 9 种公式：Barrett True-K、Barrett True-K TK、Haigis-L、Haigis TK、Pearl-DGS、Hoffer QST、Hoffer QST PK、EVO K 和 EVO PK，计算预测误差、绝对误差以及预测误差在 ±0.25 D、±0.50 D 和 ±1.00 D 内的眼数百分比。统计比较采用 Friedman 检验、Conover 的所有配对后检验、Cochran's Q 和 McNemar 配对后检验。比较了均方根误差（RMSE）和异方差检验。Barrett True-K TK 的预测屈光度中位数最低（-0.01）。EVO PK 的平均绝对误差最小（0.20）。EVO PK 有预测值的 58.9%的眼数在 ±0.25 D 以内，显著优于 Haigis-L（p=0.047）。EVO PK 的平均 RMSE 值最低（0.499）。EVO PK 公式在近视 LASIK 术后眼的 IOL 屈光力计算中产生了最准确的结果，TK/PK 值提高了准确性。
