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Abstract：
BACKGROUND: The purpose of this study was to investigate the visual and refractive outcomes in patients with pseudoexfoliation (PXF) undergoing routine cataract surgery and to compare the accuracy of intraocular lens (IOL) power calculation formulae.
METHODS: Retrospective case-series study from Shamir medical center, a public hospital, Israel. Medical records of patients who underwent routine cataract surgery between January 2019 and August 2021 were investigated. Postoperative visual acuity and manifest refraction were examined. The error in predicted refraction and IOL power calculation accuracy within a range of ± 0.50 to ± 1.00 diopters were compared between different IOL calculating formulae.
RESULTS: 151 eyes of 151 patients ages 73.9 ± 7.1 years were included in this study- 58 eyes in the PXF group and 93 eyes in the control group. The mean absolute error (MAE) for the BUII formula was 0.63D ± 0.87 for the PXF group and 0.36D ± 0.48 for the control group (p < 0.05). The MAE for the Hill-RBF 3.0 formula was 0.61D ± 0.84 for the PXF group and 0.42D ± 0.55 for the control group (p = 0.05). There were significant differences in MAE and MedAE between PXF group and control group measures (p < 0.05). In the PXF group there were no significant differences between the different formulae.
CONCLUSIONS: There were significant differences in accuracy of IOL power calculations in all formulae between PXF group and control group measures. PXF patients show hyperopic shift from predicted refraction. Barret universal II formula had the highest proportion of eyes with absolute error in prediction below or equal to 0.50 D in both PXF and control groups.
METHODS: Retrospective case-series study from Shamir medical center, a public hospital, Israel. Medical records of patients who underwent routine cataract surgery between January 2019 and August 2021 were investigated. Postoperative visual acuity and manifest refraction were examined. The error in predicted refraction and IOL power calculation accuracy within a range of ± 0.50 to ± 1.00 diopters were compared between different IOL calculating formulae.
RESULTS: 151 eyes of 151 patients ages 73.9 ± 7.1 years were included in this study- 58 eyes in the PXF group and 93 eyes in the control group. The mean absolute error (MAE) for the BUII formula was 0.63D ± 0.87 for the PXF group and 0.36D ± 0.48 for the control group (p < 0.05). The MAE for the Hill-RBF 3.0 formula was 0.61D ± 0.84 for the PXF group and 0.42D ± 0.55 for the control group (p = 0.05). There were significant differences in MAE and MedAE between PXF group and control group measures (p < 0.05). In the PXF group there were no significant differences between the different formulae.
CONCLUSIONS: There were significant differences in accuracy of IOL power calculations in all formulae between PXF group and control group measures. PXF patients show hyperopic shift from predicted refraction. Barret universal II formula had the highest proportion of eyes with absolute error in prediction below or equal to 0.50 D in both PXF and control groups.
摘要：
背景：这项研究的目的是调查假性剥脱（PXF）患者接受常规白内障手术的视觉和屈光结果，并比较人工晶状体（IOL）屈光力计算公式的准确性。
方法：来自Shamir医疗中心的回顾性病例系列研究，公立医院,以色列。调查了2019年1月至2021年8月接受常规白内障手术的患者的病历。检查术后视力和明显的屈光度。比较了不同IOL计算公式之间在±0.50至±1.00屈光度范围内的预测屈光度和IOL屈光力计算精度的误差。
结果：本研究包括151例73.9±7.1岁患者的151只眼-PXF组58只眼，对照组93只眼。BUII公式的平均绝对误差（MAE）PXF组为0.63D±0.87，对照组为0.36D±0.48（p<0.05）。PXF组Hill-RBF3.0公式的MAE为0.61D±0.84，对照组为0.42D±0.55（p=0.05）。PXF组与对照组之间的MAE和MedAE测量值存在显着差异（p<0.05）。在PXF组中,不同配方之间没有显著差异。
结论：在所有公式中，PXF组和对照组测量的IOL功率计算的准确性存在显著差异。PXF患者显示远视偏离预测的屈光。在PXF和对照组中，Barret通用II公式的预测绝对误差低于或等于0.50D的眼睛比例最高。
方法：来自Shamir医疗中心的回顾性病例系列研究，公立医院,以色列。调查了2019年1月至2021年8月接受常规白内障手术的患者的病历。检查术后视力和明显的屈光度。比较了不同IOL计算公式之间在±0.50至±1.00屈光度范围内的预测屈光度和IOL屈光力计算精度的误差。
结果：本研究包括151例73.9±7.1岁患者的151只眼-PXF组58只眼，对照组93只眼。BUII公式的平均绝对误差（MAE）PXF组为0.63D±0.87，对照组为0.36D±0.48（p<0.05）。PXF组Hill-RBF3.0公式的MAE为0.61D±0.84，对照组为0.42D±0.55（p=0.05）。PXF组与对照组之间的MAE和MedAE测量值存在显着差异（p<0.05）。在PXF组中,不同配方之间没有显著差异。
结论：在所有公式中，PXF组和对照组测量的IOL功率计算的准确性存在显著差异。PXF患者显示远视偏离预测的屈光。在PXF和对照组中，Barret通用II公式的预测绝对误差低于或等于0.50D的眼睛比例最高。
