Journal Article

Predictability comparison of sizing parameters for postoperative vault after implantable Collamer lens implantation

Yu, Guan-Shun, Dai, Qi, Zhu, Xue-Ying, Ye, Yu-Feng, Zhu, Jun, Cheng, Dan, Bao, Fang-Jun, Li, Fen-Fen, Jiang, Shang-Yang, Wu, Shuang-Qing

2024

Overview

Purpose This study aims to assess the accuracy of three parameters (white-to-white distance [WTW], angle-to-angle [ATA], and sulcus-to-sulcus [STS]) in predicting postoperative vault and to formulate an optimized predictive model. Methods In this retrospective study, a cohort of 465 patients (comprising 769 eyes) who underwent the implantation of the V4c implantable Collamer lens with a central port (ICL) for myopia correction was examined. Least absolute shrinkage and selection operator (LASSO) regression and classification models were used to predict postoperative vault. The influences of WTW, ATA, and STS on predicting the postoperative vault and ICL size were analyzed and compared. Results The dataset was randomly divided into training (80%) and test (20%) sets, with no significant differences observed between them. The screened variables included only seven variables which conferred the largest signal in the model, namely, lens thickness (LT, estimated coefficients for logistic least absolute shrinkage of −0.20), STS (−0.04), size (0.08), flat K (−0.006), anterior chamber depth (0.15), spherical error (−0.006), and cylindrical error (−0.0008). The optimal prediction model depended on STS ( R 2 =0.419, RMSE=0.139), whereas the least effective prediction model relied on WTW ( R 2 =0.395, RMSE=0.142). In the classified prediction models of the vault, classification prediction of the vault based on STS exhibited superior accuracy compared to ATA or WTW. Conclusions This study compared the capabilities of WTW, ATA, and STS in predicting postoperative vault, demonstrating that STS exhibits a stronger correlation than the other two parameters.

• Publisher: Springer Berlin Heidelberg,Springer Nature B.V
• Subject: Accuracy / Adult / Anterior chamber / Anterior Chamber - diagnostic imaging / Anterior Chamber - pathology / Archives & records / Biometry - methods / Classification / Cornea / Depth perception / Eye lens / Female / Follow-Up Studies / Hospitals / Humans / Lens Implantation, Intraocular / Male / Medicine / Medicine & Public Health / Middle Aged / Myopia / Myopia - physiopathology / Myopia - surgery / Ophthalmology / Phakic Intraocular Lenses / Postoperative Period / Prediction models / Refraction, Ocular - physiology / Refractive Surgery / Regression analysis / Retrospective Studies / Variables / Visual Acuity / Young Adult