Intraoperative Aberrometer Plus Image-guided System for Astigmatism Correction Compared to Standard Image-guided...

This study aimed to evaluate astigmatism after cataract surgery by comparing the use of an intraoperative aberrometer combined with an image-guided system (VLynk) versus an image-guided system alone (Verion) in patients with significant lens opacity.

The main outcomes included the corrected distance visual acuity (CDVA), astigmatism, spherical equivalent (SE) status, and the predicting factors for reduced astigmatism in the two groups.

In this study, 73 patients were enrolled in the study group (VLynk); 76 individuals constituted the control group (Verion). Preoperative and postoperative CDVA between both groups were similar (all p>0.05). The postoperative cylinder power (p=0.002), postoperative SE (p=0.004), and the difference between real SE and estimated SE (p=0.001) were significantly lower in the VLynk group. Implantation of toric IOL was associated with less astigmatism in both groups (both p<0.05). Longer axial length (p=0.013) and higher central corneal power (p=0.023) were correlated with greater astigmatism in the Verion group.

VLynk is correlated with better postoperative astigmatism control and predictability compared to Verion in patients with significant lens opacity.