Sakai Daiki, Hirami Yasuhiko, Nakamura Makoto, Kurimoto Yasuo
Department of Ophthalmology, Kobe City Eye Hospital, Kobe, Japan.
Department of Ophthalmology, Kobe City Medical Center General Hospital, Kobe, Japan.
Clin Ophthalmol. 2021 Nov 27;15:4535-4541. doi: 10.2147/OPTH.S342392. eCollection 2021.
To compare the accuracy of the intraocular lens (IOL) power calculation formulas for predicting the postoperative refraction in eyes with a target of emmetropia or intentional myopia.
This is a retrospective study conducted at Kobe City Eye Hospital, Kobe, Japan. Fifty eyes of 50 patients with axial myopia who underwent uncomplicated phacoemulsification and single-type IOL implantation for a target of emmetropia (plano to -0.5 D) or intentional myopia (-2.0 D to -3.0 D) were selected. Preoperative ocular biometry was performed using IOLMaster700 in all eyes. Refractive prediction errors of 6 IOL formulas integrated into IOLMaster700 were compared between eyes with a target of emmetropia and intentional myopia.
The mean numerical errors of SRK/T (Sanders, Retzlaff, and Kraft/theoretical), Holladay 1, Hoffer Q, and Holladay 2 significantly differed between the two groups (p < 0.001, p = 0.008, 0.02, and 0.007, respectively). The values for mean numerical errors in eyes with a target of intentional myopia were smaller, showing relatively myopic outcome, as compared with those in eyes with a target of emmetropia. In eyes with a target of emmetropia, the mean numerical errors of Holladay 1 (p < 0.001, 95% confidence interval [CI]: 0.32 to 0.63), Hoffer Q (p = 0.001, 95% CI: 0.12 to 0.42), and Barrett Universal II (p = 0.007, 95% CI: 0.06 to 0.35) were significantly different from zero (hyperopic trend). Furthermore, in eyes with a target of intentional myopia, the mean numerical error of SRK/T (p = 0.001, 95% CI: -0.61 to -0.17) and Holladay 2 (p = 0.023, 95% CI: -0.43 to -0.04) were significantly different from zero (myopic trend).
In patients with axial myopia, some IOL formulas may show a myopic trend in the refractive outcome when targeting intentional myopia as compared to emmetropia.
比较人工晶状体（IOL）屈光力计算公式在预测目标为正视或故意近视的眼睛术后屈光状态时的准确性。
这是一项在日本神户市立眼科医院进行的回顾性研究。选取了50例轴向近视患者的50只眼睛，这些患者接受了无并发症的超声乳化白内障吸除术和单焦IOL植入术，目标为正视（平光至-0.5D）或故意近视（-2.0D至-3.0D）。所有眼睛均使用IOLMaster700进行术前眼部生物测量。比较了IOLMaster700中集成的6种IOL公式在目标为正视和故意近视的眼睛之间的屈光预测误差。
两组之间SRK/T（桑德斯、雷茨拉夫和克拉夫/理论公式）、霍拉迪1、霍弗Q和霍拉迪2的平均数值误差有显著差异（分别为p < 0.001、p = 0.008、0.02和0.007）。与目标为正视的眼睛相比，目标为故意近视的眼睛的平均数值误差值较小，显示出相对近视的结果。在目标为正视的眼睛中，霍拉迪1（p < 0.001，95%置信区间[CI]：0.32至0.63）、霍弗Q（p = 0.001，95%CI：0.12至0.42）和巴雷特通用II（p = 0.007，95%CI：0.06至0.35）的平均数值误差与零有显著差异（远视趋势）。此外，在目标为故意近视的眼睛中，SRK/T（p = 0.001，95%CI：-0.61至-0.17）和霍拉迪2（p = 0.023，95%CI：-0.43至-0.04）的平均数值误差与零有显著差异（近视趋势）。
在轴向近视患者中，与正视相比，一些IOL公式在目标为故意近视时的屈光结果可能显示出近视趋势。
