Abstract：
UNASSIGNED: To evaluate the clinical outcomes, rotational stability, and footplate position of the toric Implantable Collamer Lens (TICL) (STAAR Surgical) in eyes with low vault and analyze factors related to rotational stability.
UNASSIGNED: This prospective observational study included 59 eyes of 59 patients with insufficient vault (< 250 µm). Postoperative rotation was defined as the difference between the achieved angle and the intraoperative fixation angle, and assessed with a digital anterior segment photograph after full mydriasis at 1 week and 1, 3, and 6 months postoperatively. Ultrasound biomicroscopy was used to determine the ciliary body morphology and position of the footplate. Correlation analysis was employed to identify the risk factors associated with TICL rotation at 6 months postoperatively.
UNASSIGNED: At 6 months postoperatively, the mean central vault was 137.4 ± 61.0 µm (range: 40 to 236 µm), and the mean efficacy and safety indices were 1.04 and 1.15, respectively. The mean manifest refractive astigmatism decreased from -1.67 ± 0.82 diopters (D) preoperatively to -0.43 ± 0.33 D postoperatively, and the mean absolute rotation was 4.50 ± 3.08 degrees (range: 0 to 12.50 degrees). The angle of rotation was correlated with the preoperative spherical power (r = -0.318, P = .014), the average value of TICL footplates position (r = 0.284, P = .029), and postoperative astigmatism (r = -.469, P⩽ .001).
UNASSIGNED: TICL implantation is predictable, safe, and effective in correcting myopic astigmatism in eyes with low vault. The rotational stability was acceptable and related to the malposition of the footplate and preoperative spherical power. [J Refract Surg. 2024;40(7):e460-e467.].
UNASSIGNED: This prospective observational study included 59 eyes of 59 patients with insufficient vault (< 250 µm). Postoperative rotation was defined as the difference between the achieved angle and the intraoperative fixation angle, and assessed with a digital anterior segment photograph after full mydriasis at 1 week and 1, 3, and 6 months postoperatively. Ultrasound biomicroscopy was used to determine the ciliary body morphology and position of the footplate. Correlation analysis was employed to identify the risk factors associated with TICL rotation at 6 months postoperatively.
UNASSIGNED: At 6 months postoperatively, the mean central vault was 137.4 ± 61.0 µm (range: 40 to 236 µm), and the mean efficacy and safety indices were 1.04 and 1.15, respectively. The mean manifest refractive astigmatism decreased from -1.67 ± 0.82 diopters (D) preoperatively to -0.43 ± 0.33 D postoperatively, and the mean absolute rotation was 4.50 ± 3.08 degrees (range: 0 to 12.50 degrees). The angle of rotation was correlated with the preoperative spherical power (r = -0.318, P = .014), the average value of TICL footplates position (r = 0.284, P = .029), and postoperative astigmatism (r = -.469, P⩽ .001).
UNASSIGNED: TICL implantation is predictable, safe, and effective in correcting myopic astigmatism in eyes with low vault. The rotational stability was acceptable and related to the malposition of the footplate and preoperative spherical power. [J Refract Surg. 2024;40(7):e460-e467.].
摘要：
■为了评估临床结果，旋转稳定性,低拱顶眼的复曲面可植入Collamer晶状体（TICL）（STAAR外科）的脚板位置，并分析与旋转稳定性相关的因素。
■这项前瞻性观察性研究包括59例拱顶不足（<250µm）患者的59只眼。术后旋转定义为达到的角度与术中固定角度之间的差异，并在术后1周和1、3和6个月完全散瞳后使用数字眼前节照片进行评估。超声生物显微镜用于确定睫状体形态和踏板的位置。术后6个月采用相关性分析确定与TICL轮换相关的危险因素。
■术后6个月，平均中央拱顶为137.4±61.0µm（范围：40至236µm），平均疗效和安全性指数分别为1.04和1.15。平均明显的屈光散光从术前的-1.67±0.82屈光度（D）降低至术后的-0.43±0.33D，平均绝对旋转为4.50±3.08度（范围：0至12.50度）。旋转角度与术前球面功率相关（r=-0.318，P=0.014），TICL踏板位置的平均值（r=0.284，P=0.029），和术后散光（r=-.469，P﹤.001）。
■TICL植入是可预测的，安全,并有效纠正低穹窿眼的近视散光。旋转稳定性是可以接受的，并且与踏板的错位和术前球形力有关。[JRefractSurg.2024；40（7）：e460-e467。].
■这项前瞻性观察性研究包括59例拱顶不足（<250µm）患者的59只眼。术后旋转定义为达到的角度与术中固定角度之间的差异，并在术后1周和1、3和6个月完全散瞳后使用数字眼前节照片进行评估。超声生物显微镜用于确定睫状体形态和踏板的位置。术后6个月采用相关性分析确定与TICL轮换相关的危险因素。
■术后6个月，平均中央拱顶为137.4±61.0µm（范围：40至236µm），平均疗效和安全性指数分别为1.04和1.15。平均明显的屈光散光从术前的-1.67±0.82屈光度（D）降低至术后的-0.43±0.33D，平均绝对旋转为4.50±3.08度（范围：0至12.50度）。旋转角度与术前球面功率相关（r=-0.318，P=0.014），TICL踏板位置的平均值（r=0.284，P=0.029），和术后散光（r=-.469，P﹤.001）。
■TICL植入是可预测的，安全,并有效纠正低穹窿眼的近视散光。旋转稳定性是可以接受的，并且与踏板的错位和术前球形力有关。[JRefractSurg.2024；40（7）：e460-e467。].
