PURPOSE To examine the vault size after Implantable Collamer Lens (ICL) (KS-AquaPORT; STAAR Surgical) surgery using the KS formula. METHODS In this prospective study, the postoperative vault was examined using the KS formula in 121 eyes of 65 patients (28 men and 37 women) who underwent ICL implantation for myopia and myopic astigmatism. The mean horizontal angle-to-angle (ATA), anterior chamber depth, and axial length before surgery were 11.83 ± 0.40, 3.25 ± 0.34, and 26.52 ± 1.17, respectively. Anterior segment optical coherence tomography (CASIA2; Tomey Corporation) was used for ATA measurement. RESULTS Multiple regression analysis of the potential factors influencing the predicted vault error (postoperative vault - predicted vault by KS formula) showed that only ICL size was a significant factor (P < .001, r = 0.36). At an ICL size of 12.1 mm, the postoperative vault was smaller than the predicted vault, and the postoperative vault tended to be larger than the predicted vault at ICL sizes of 13.2 and 13.7 mm. CONCLUSIONS Vault prediction by the KS formula was generally good, but the ICL size influenced the vault prediction error; therefore, a modified KS formula was created to reduce the error in measurements of the postoperative vault. [J Refract Surg. 2021;37(9):636-641.].

中文翻译：

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使用 KS 公式评估植入式准直透镜植入后的穹窿。

目的 使用 KS 公式检查植入式 Collamer Lens (ICL)（KS-AquaPORT；STAAR Surgical）手术后的拱顶尺寸。方法 在这项前瞻性研究中，使用 KS 公式在 65 名因近视和近视散光接受 ICL 植入术的患者（28 名男性和 37 名女性）的 121 只眼中检查术后穹窿。术前平均水平角对角 (ATA)、前房深度和轴向长度分别为 11.83 ± 0.40、3.25 ± 0.34 和 26.52 ± 1.17。前段光学相干断层扫描 (CASIA2; Tomey Corporation) 用于 ATA 测量。结果 影响预测穹窿误差的潜在因素（术后穹窿 - KS 公式预测穹窿）的多元回归分析表明，只有 ICL 大小是一个重要因素（P < .001，r = 0.36）。ICL 大小为 12。1 mm，术后穹窿小于预测的穹窿，并且在 ICL 尺寸为 13.2 和 13.7 mm 时，术后穹窿往往大于预测的穹窿。结论KS公式对拱顶预测总体上较好，但ICL大小影响了拱顶预测误差；因此，创建了一个修改后的 KS 公式以减少术后穹窿测量的误差。[J 屈光手术。2021;37(9):636-641.]。[J 屈光手术。2021;37(9):636-641.]。[J 屈光手术。2021;37(9):636-641.]。