Prevalence and risk factors of ellipsoid zone damage after pars plana vitrectomy for idiopathic epiretinal membrane
Prevalence and risk factors of ellipsoid zone damage after pars plana vitrectomy for idiopathic epiretinal membrane DOI: 10.1097/IAE.0000000000003321
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Retrospective study to assess factors associated with external limiting membrane (ELM)/ellipsoid zone (EZ) damage after vitrectomy (PPV) for epiretinal membrane (ERM) and evaluate their impact on functional and anatomic outcomes. Patients who underwent PPV with ERM ± inner limiting membrane (ILM) peeling were retrospectively analyzed. Best-corrected visual acuity and central macular thickness were longitudinally collected based on available follow-up. Demographic data, clinical and surgical details were included in logistic regression models having ELM/EZ loss as a binary outcome. We found that cataract extraction during vitrectomy and the presence of outer retinal abnormalities at baseline are associated with higher odds of external limiting membrane/ellipsoid zone defects after vitrectomy. The rate of functional improvement varies as a function of the baseline visual acuity and severity of retinal layers’ distortion before surgery.