J Refract Surg. 2021 Dec;37(12):836-841. doi: 10.3928/1081597X-20210812-02. Epub 2021 Dec 1.
To evaluate the accuracy of intraocular lens (IOL) power calculation formulas from two biometers using swept-source optical coherence tomography for quadrifocal Acrysof IQ Panoptix TFNT IOL (Alcon Laboratories, Inc) implantation in patients with visually significant cataract with previous corneal refractive surgery.
This retrospective study comprised 50 eyes from 50 patients with a history of corneal refractive surgery and TFNT IOL implantation. Candidate formulas were Shammas-PL and Barrett True-K in the Argos (Movu, Inc), Barret True-K and Haigis-L in the IOLMaster 700 (Carl Zeiss Meditec AG), and Haigis using the total keratometry (TK) mode in the IOLMaster 700. The main outcome measure was the mean absolute error (MAE) detected at postoperative 6 months. The refractive accuracy was also evaluated as number and percentage of eyes within ±0.25, ±0.50, and ±0.75 diopters (D) of the prediction error.
The uncorrected distance and near visual acuity were 0.32 ± 0.34 and 0.46 ± 0.20 logMAR at baseline, and significantly improved to 0.04 ± 0.07 and 0.03 ± 0.06 logMAR at postoperative 6 months ( < .001 for all analysis) with a mean spherical equivalent of -0.20 ± 0.39 D. The MAE was smallest for the Barrett True-K formula in the IOLMaster 700 (0.36 ± 0.26 D) and largest for the Shammas-PL formula in the Argos (0.59 ± 0.37 D). The Barrett True-K formula from both devices showed that 90% of eyes were within ±0.75 D of MAE.
The visual and refractive outcomes of TFNT IOL implantation in patients with previous corneal refractive surgery were favorable. The Barrett True-K formula in the IOLMaster 700 showed the best refractive outcome for TFNT IOL implantation. .
评估使用扫频源光学相干断层扫描对先前接受过角膜屈光手术的视力显著白内障患者进行四焦点 Acrysof IQ Panoptix TFNT IOL（Alcon Laboratories， Inc.）植入术后，两种生物测量仪的眼内晶状体（IOL）计算公式的准确性。
这项回顾性研究共纳入 50 例（50 只眼）曾接受过角膜屈光手术和 TFNT IOL 植入术的患者。候选公式包括 Argos（Movu， Inc.）中的 Shammas-PL 和 Barrett True-K、IOLMaster 700（Carl Zeiss Meditec AG）中的 Barret True-K 和 Haigis-L 以及 IOLMaster 700 中的总角膜曲率（TK）模式中的 Haigis。主要观察指标为术后 6 个月时的平均绝对误差（MAE）。还评估了预测误差在±0.25、±0.50 和±0.75 屈光度（D）范围内的眼数和百分比，以评估屈光准确性。
在基线时，未矫正的远距和近距视力分别为 0.32 ± 0.34 和 0.46 ± 0.20 logMAR，术后 6 个月时显著改善至 0.04 ± 0.07 和 0.03 ± 0.06 logMAR（所有分析均<.001），平均等效球镜度为-0.20 ± 0.39 D。IOLMaster 700 中的 Barrett True-K 公式的 MAE 最小（0.36 ± 0.26 D），Argos 中的 Shammas-PL 公式的 MAE 最大（0.59 ± 0.37 D）。两种设备的 Barrett True-K 公式均显示 90%的眼在 MAE 的±0.75 D 范围内。
先前接受过角膜屈光手术的患者植入 TFNT IOL 后的视力和屈光结果良好。IOLMaster 700 中的 Barrett True-K 公式在 TFNT IOL 植入方面显示出最佳的屈光结果。
