Röggla Veronika, Langenbucher Achim, Leydolt Christina, Schartmüller Daniel, Schwarzenbacher Luca, Hoffmann Peter, Menapace Rupert
Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria.
Institut Für Experimentelle Ophthalmologie, Saarland University, Homburg, Germany.
Clin Exp Ophthalmol. 2023 Aug;51(6):559-565. doi: 10.1111/ceo.14261. Epub 2023 Jun 1.
We evaluated whether the best-fit intraocular lens (IOL) power formula for the first operated eye (BF1) was also the most accurate formula for the second eye.
This was a retrospective study of 152 patients who underwent uncomplicated delayed bilateral cataract surgery with a minimum delay of 3 weeks using only one 1-piece IOL (HOYA, Vivinex) at the Medical University of Vienna, Austria. Seven different formulae (Barrett Universal II, Castrop, Haigis, Hoffer Q, Holladay 1, Kane, and SRK/T) were investigated to test the formula selection approach with regard to the calculated mean and median absolute prediction errors (MAE/MedAE).
The mean intraindividual difference in axial length was 0.2 mm (±0.3 mm). BF1 coincided with the best-fit formula for the second eye (BF2) in 56% of patients (p < 0.05). Using BF1 for the second eye led to a lower MedAE (0.22 dioptre, D) than using a formula at random (0.33 D) and was less accurate than using the best-fit formula for each eye separately (0.1 D). The MedAEs of all formulae were generally low, ranging from 0.28 to 0.35 D.
Using BF1 for the second eye led to a lower MedAE than the random selection of a formula. Therefore, BF1 can be used for the second eye if the surgeon is unsure of the choice of formula.
我们评估了用于第一只手术眼的最佳拟合人工晶状体（IOL）屈光度计算公式（BF1）是否也是第二只眼最准确的公式。
这是一项对152例患者的回顾性研究，这些患者在奥地利维也纳医科大学接受了仅使用一片式IOL（豪雅，Vivinex）的无并发症延迟双侧白内障手术，手术间隔至少3周。研究了七种不同的公式（巴雷特通用II型、卡斯特罗普、海吉斯、霍弗Q、霍拉迪1型、凯恩和SRK/T），以测试基于计算出的平均和中位数绝对预测误差（MAE/MedAE）的公式选择方法。
个体眼轴长度的平均差异为0.2毫米（±0.3毫米）。56%的患者中，BF1与第二只眼的最佳拟合公式（BF2）一致（p < 0.05）。对第二只眼使用BF1导致的MedAE（0.22屈光度，D）低于随机使用一个公式（0.33 D），且不如分别对每只眼使用最佳拟合公式准确（0.1 D）。所有公式的MedAE总体较低，范围在0.28至0.35 D之间。
对第二只眼使用BF1导致的MedAE低于随机选择公式。因此，如果外科医生不确定公式的选择，BF1可用于第二只眼。
