Abstract
Purpose :
To study the incidence and the risk factors for onset or progression of posterior vitreous detachment (PVD) at the vitreomacular interface (VMI) after cataract surgery.
Methods :
Patients with a history of phacoemulsification from April 2018 to April 2019 at the KEYE Eye Center, Seoul, Korea, and postoperative monitoring for more than 2 months were retrospectively reviewed. Cox proportional hazard ratios for the onset or development of PVD after cataract surgery in the presence of selected risk factors and demographic data were calculated. To evaluate the ocular risk factors, various ocular metrics including spherical equivalent (SE), axial length (AXL), anterior chamber depth, lens thickness, central subfield thickness, PVD status at macular and optic nerve head (ONH), peripapillary retinal nerve fiber layer thickness, and ONH parameters from optical coherent tomography (OCT) scans were used for the analysis.
Results :
Among 988 eyes without PVD at baseline, 174 eyes (17.6%) showed changes in the VMI. Univariate analysis showed that age, SE, AXL, PVD status at macular and ONH, and average and vertical cup-disc ratios (CDRs) were significantly associated with the PVD onset or development (P = .046, P = .004, P = .040, P < .001, P < .001, P = .008, and P = .042, respectively). In a multivariate analysis, PVD status at macular and ONH, and smaller CDR were associated with PVD onset or progression after cataract surgery after adjustment of age, SE, and AXL (P < .001, P < .001 and P = .005, respectively).
Conclusions :
The risk of PVD onset or progression was dependent on PVD status and the CDR detected on OCT scans, not on age or AXL, in a large patient cohort. Patients who show risk factors on OCT should be monitored carefully during the postoperative period.
This is a 2021 ARVO Annual Meeting abstract.