目的：研究术前眼前节参数对散光型人工晶状体(Toric IOL)旋转稳定性的影响。方法：前瞻性研究。选择2023年3月至2023年12月在郑州大学第一附属医院眼科行白内障超声乳化联合板状襻Toric IOL植入术治疗合并角膜规则散光的白内障患者41例54眼。术后1 d，2 wk，1 mo评估非矫正远视力(UCDVA)及Toric IOL的旋转度，术后2 wk，1 mo评估矫正远视力(CDVA)，术后2 wk时评估Toric IOL的偏心距及倾斜度。结果：最终纳入33例40眼。术后1 d，2 wk，1 mo的UCDVA(LogMAR)分别为0.10(0.10，0.30)、0.05(0，0.10)和0(0，0.10)，较术前[0.80(0.49，1.00)]改善(P<0.001)； 术后2 wk，1 mo的CDVA(LogMAR)分别为0.05(0，0.15)和0(0，0.138)，较术前[0.52(0.40，0.80)]改善(P<0.001)； 术后2 wk，1 mo散光分别为0.625(0.25，0.75)、0.50(0.25，0.75)D，较术前散光[1.82(1.31，2.59)D]明显减少(P<0.001)。术前眼前节长度(ASL)、晶状体厚度(LT)与术后1 d，2 wk Toric IOL旋转度正相关(术后1 d：rs=0.463，P=0.003； rs=0.340，P=0.032； 术后2 wk：rs=0.520，P=0.001； rs=0.409，P=0.009)； 术后1 mo，仅ASL与术后Toric IOL旋转度正相关(rs=0.463，P=0.003)。线性回归分析结果显示，术前ASL可预测术后1 d，2 wk，1 mo Toric IOL旋转度(F1 d=10.098，P1 d=0.003； F2 wk=16.915，P2 wk<0.001； F1 mo=10.957，P1 mo=0.002)。术后2 wk Toric IOL旋转度与偏心距呈正相关(rs=0.360，P=0.043)。结论：Toric IOL术后早期旋转与ASL正相关，Toric IOL的旋转与其偏心距呈正相关。

AIM: To explore the effects of preoperative anterior segment parameters on the rotational stability of Toric intraocular lens(Toric IOL).METHODS:Prospective study. A total of 41 cataract patients(54 eyes)with combined corneal regular astigmatism from March to December 2023 were included and treated with cataract phacoemulsification combined with plate loop Toric IOL implantation in the Department of Ophthalmology of the First Affiliated Hospital of Zhengzhou University. The rotation degree of Toric IOL and uncorrected distance visual acuity(UCDVA)were evaluated at 1 d, 2 wk, and 1 mo postoperatively, the corrected distance visual acuity(CDVA)was evaluated at 2 wk and 1 mo after surgery, and the decentration and tilt of the Toric IOL were assessed at 2 wk postoperatively.RESULTS:A total of 33 patients(40 eyes)were included in this study. The UCDVA(LogMAR)of 1 d, 2 wk and 1 mo postoperatively were 0.10(0.10, 0.30), 0.05(0, 0.10)and 0(0, 0.10), respectively, which was improved compared with the preoperative levels of [0.80(0.49, 1.00)](P<0.001). The CDVA(LogMAR)of 2 wk and 1 mo postoperatively were 0.05(0, 0.15)and 0(0, 0.138), respectively, which was improved compared with preoperative levels of [0.52(0.40, 0.80)](P<0.001). The residual astigmatism of 2 wk and 1 mo postoperatively were 0.625(0.25, 0.75)D and 0.50(0.25, 0.75)D, respectively, which was significantly reduced compared with preoperative astigmatism of [1.82(1.31, 2.59)D](P<0.001). The preoperative anterior segment length(ASL), and lens thickness(LT)were positively correlated with Toric IOL rotation degree at 1 d(rs=0.463, P=0.003; rs=0.340, P=0.032)and 2 wk(rs=0.520, P=0.001; rs=0.409, P=0.009)postoperatively. At 1 mo postoperatively, only ASL was positively correlated with Toric IOL rotation degree(rs=0.463, P=0.003). The results of linear regression analysis showed that preoperative ASL was a predictor of rotation degree at 1 d, 2 wk and 1 mo after surgery(F1 d=10.098, P1 d=0.003; F2 wk=16.915, P2 wk<0.001; F1 mo=10.957, P1 mo=0.002). The rotation degree of Toric IOL was positively correlated with lens decentration(rs=0.360, P=0.043).CONCLUSION:The early postoperative rotation of Toric IOL is positively correlated with ASL, and the rotation is also positively correlated with lens decentration.