Evaluation of implantable collamer lens sizing developed by reviewing the horizontal compression-vault coefficient

Abstract

To evaluate the implantable collamer lens (ICL)-sizing method using the partial regression coefficient of the implanted ICL size to review the conventional horizontal compression coefficient and match the results of clinical observation.

Comparative Evaluation of Multiple Nomograms for Predicting Postoperative Vault after Implantable Collamer Lens Surgery

“…Notably, none of the nomograms compared in this study used ACA as a parameter for predicting vault. [8][9][10][12][13][14][15][16][17]29 When evaluating the utility of various nomograms, one must also consider the ease of use for required preoperative measurements which may not be available in all practice settings. Although clinicians have historically used STAAR and Optimized WTW, followed by the implementation of UBM, which allowed for the use of Parkhurst and Dougherty, the authors found Kim, Rocamora, Reinstein, and Russo to be the highest performing for the prediction of postoperative vault.…”

“…Notably, none of the nomograms compared in this study used ACA as a parameter for predicting vault. 8–10,12–17,29…”

“…These include WTWbased (STAAR [manufacturer's] and Optimized WTW); STSbased (Dougherty and Parkhurst); least absolute shrinkage and selection operator-based Kim; least absolute shrinkage and selection operator-optical coherence tomography-based Rocamora; CBID-based (Reinstein); machine learning-based (Russo, Kamiya, Kang, and Shen); as well as the KSV1, KSV2, Kojima, and Nakamura V3 nomograms. [8][9][10][11][12][13][14][15][16][17][18][19] While other studies have compared the effectiveness and utility of some of these, we had the opportunity to compare at least 9 to 12 nomograms based on existing scientific literature. 8,15,17,20 Therefore, the main objective of this study was to assess the accuracy of postoperative vault prediction and ICL size recommendation across all available nomograms in patients undergoing ICL implantation.…”

Endothelzellverlust bei phaken Intraokularlinsen

“…Reinstein et al developed a formula which uses the inner diameter of the ciliary body, scotopic pupil diameter, and other parameters to predict vault size with an accuracy of ± 300 µm in 94-100 % of eyes [78]. Using several parameters based on anterior segment optical coherence tomography, Nakamura et al were able to achieve a vault size of between 250 and 1,000 µm in 90.6 % of eyes [80].…”

“…Um die Vorhersagbarkeit zu erhöhen, wurden alternative Berechnungsmethoden vorgeschlagen. Die neuesten Studien konnten eine bessere Vorhersagbarkeit des Vaults erreichen, indem sie mehrere auf optischer Kohärenztomografie des Vorderabschnittes und auf Ultraschall-Biomikroskopie basierte Parameter verwendeten 78 , 79 , 80 . Reinstein et al entwickelten eine Formel, die anhand des Innendurchmessers des Ziliarkörpers, des Pupillendurchmessers bei skotopischen Lichtbedingungen und anderer Parameter den Vault mit einer Genauigkeit von ± 300 µm bei 94 – 100% der Augen vorhersagen konnte 78 .…”