Purpose: To evaluate risk factors for significant rotation and determine optimal timing for repositioning surgery following a plate-haptic toric intraocular lens (IOL) implantation.
Methods: This retrospective study enrolled patients who underwent the plate-haptic toric IOL implantation at seven hospitals in Shanghai. IOL rotation and residual astigmatism were compared before and after repositioning surgery. Risk factors for significant IOL rotation after cataract surgery were identified by stepwise multiple linear regression analysis. Spearman's and linear regression analyses were performed to identify factors associated with IOL rotation after repositioning. The receiver operator characteristic (ROC) curve was used to analyze the optimal timing for repositioning surgery.
Results: Among 2,745 eyes implanted with the toric IOL, 46 eyes (1.68%) of 45 patients underwent repositioning surgery. Axial length and lens thickness were significantly associated with IOL rotation before repositioning. After repositioning surgery, IOL rotation and residual astigmatism were significantly reduced (all < .001). IOL rotation after repositioning was negatively associated with the timing of repositioning surgery (all < .001). The ROC curve showed that the optimal cut-off for the timing of repositioning surgery was 15 days or greater.
Conclusions: The prevalence of repositioning surgery after the plate-haptic toric IOL implantation was 1.68%, and the optimal timing for repositioning surgery was recommended to be 2 to 3 weeks after cataract surgery. . .
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