AI Article Synopsis
- The study examined 408 eyes undergoing surgery for idiopathic epiretinal membrane (iERM) to find the prevalence of posterior vitreous attachment (PVA) and its preoperative predictive factors.
- About 20.1% of the eyes showed PVA, with axial length and lens status being significant factors; longer axial lengths decreased the odds of PVA, while phakic eyes had a higher risk.
- Despite the occurrence of PVA, it did not impact the surgical outcomes, while factors like shorter axial length and lower preoperative visual acuity were linked to worse visual recovery.*
Article Abstract
Background: To report the prevalence of posterior vitreous attachment (PVA) in patients with idiopathic epiretinal membrane (iERM) and to determine associated preoperative predictive factors.
Methods: Retrospective observational case series of 408 eyes who underwent surgery for iERM without vitreomacular traction. The status of the posterior hyaloid was assessed intraoperatively. Predictive factors were analysed using univariate and multivariate logistic regression. We also evaluated the effect of PVA on the anatomical and functional outcomes of surgery.
Results: Eighty-two (20.1%) eyes were found to have an undetached posterior hyaloid during vitrectomy. In multivariate analysis, axial length (AL) and lens status were strongly associated with the posterior vitreous status (p = 0.031 and p = 0.048). The odds of having a PVA decreased by a factor 0.81 per mm of AL (95% CI, 0.66-1.00). Phakic eyes had a 2.88-fold increased risk of exhibiting PVA compared to those with previous cataract extraction (95% CI, 1.10-7.52). The presence of PVA did not have any effect on postoperative anatomical and functional outcomes. In contrast, we found that eyes with shorter axial length, low preoperative visual acuity and disruption of the ellipsoid zone exhibited worse visual recovery (p = 0.006, p < 0.001 and p = 0.037).
Conclusion: PVA was observed in 20.1% of eyes undergoing vitrectomy for iERM. Shorter AL and phakic status were strong predictive factors of PVA in those eyes. However, the morphological features and the surgical prognosis of iERMs with PVA did not differ from those with posterior vitreous detachment.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9151910 | PMC |
| http://dx.doi.org/10.1038/s41433-021-01636-5 | DOI Listing |
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