Li Qingchen, Liu Xinyi, Yang Jiasong, Dai Yumeng, Li Wensheng
Shanghai Aier Eye Hospital, Aier Eye Hospital Group Co. Ltd, Shanghai, 201103, People's Republic of China.
Shanghai Aier Eye Institute, Shanghai, 201103, People's Republic of China.
Clin Ophthalmol. 2024 May 25;18:1457-1465. doi: 10.2147/OPTH.S461195. eCollection 2024.
To compare Barrett TK Universal II and Barrett Universal II TCRP calculations in the power calculations for 3 presbyopia-correcting intraocular lenses (PC-IOL).
This observational study involved 64 eyes from 64 patients who prepared to undergo extraction of crystalline lenses combined with PC-IOL (Symfony ZXR00, PanOptix TFNT00, or AT LISA tri 839MP) implantation. All eyes underwent ocular biometric measurements with IOLMaster 700 and Pentacam HR, and the interdevice agreement of measurements including total keratometry (TK, IOLMaster 700) and total corneal refractive power (TCRP, Pentacam HR) was evaluated. IOL power calculations were performed using TK-based Barrett TK Universal II and TCRP-based Barrett Universal II calculations, respectively.
Paired -tests showed that the differences in white-to-white diameter, central corneal thickness, anterior chamber depth, and mean TK between IOLMaster 700 and Pentacam HR were slight but significant (all P<0.05), and the differences in recommended IOL power for emmetropia between two Barrett calculations were also significant in 3 PC-IOLs (all P<0.05). The ROC curve showed that the AUC was 0.917 (95% CI, 0.820-0.971) for the absolute value of the difference between TK and TCRP in discriminating the difference of ≥ ±0.5 D in predicted IOL power with best cutoff values of 0.4 D.
The novel Barrett TK Universal II formula built in IOLMaster 700 is comparable to TCRP-based Barrett Universal II calculation for IOL power calculation of PC-IOLs, and the convenience of using the Barrett TK Universal II formula should be founded on measurement consistency between devices.
比较Barrett TK Universal II和Barrett Universal II在3种矫正老视的人工晶状体（PC-IOL）的屈光力计算中的TCRP计算。
这项观察性研究纳入了64例准备接受晶状体摘除联合PC-IOL（Symfony ZXR00、PanOptix TFNT00或AT LISA tri 839MP）植入的患者的64只眼。所有眼睛均使用IOLMaster 700和Pentacam HR进行眼部生物测量，并评估包括总角膜曲率（TK，IOLMaster 700）和总角膜屈光力（TCRP，Pentacam HR）在内的测量设备间一致性。分别使用基于TK的Barrett TK Universal II和基于TCRP的Barrett Universal II计算进行人工晶状体屈光力计算。
配对t检验显示，IOLMaster 700和Pentacam HR之间的白对白直径、中央角膜厚度、前房深度和平均TK差异轻微但具有统计学意义（均P<0.05），并且两种Barrett计算法在3种PC-IOL中对于正视眼推荐的人工晶状体屈光力差异也具有统计学意义（均P<0.05）。ROC曲线显示，在区分预测人工晶状体屈光力差异≥±0.5 D时，TK和TCRP差值的绝对值的AUC为0.917（95%CI，0.820-0.971），最佳截断值为0.4 D。
IOLMaster 700中内置的新型Barrett TK Universal II公式在PC-IOL的人工晶状体屈光力计算方面与基于TCRP的Barrett Universal II计算相当，并且使用Barrett TK Universal II公式的便利性应建立在设备间测量一致性的基础上。
