Abstract
Background: Previous studies have shown that epiretinal membranes (ERMs) may be associated with abnormal outer retinal anatomy. However, long-term morphological and functional results of pars plana vitrectomy (PPV) with ERM and internal limiting membrane (ILM) peeling in eyes with central bouquet (CB) alterations have not yet been investigated. Methods: In a retrospective, consecutive study all patients underwent best corrected visual acuity (BCVA) testing and spectral domain optical coherence tomography (SD-OCT) before and after a mean of 20 months (range 3–70 months) postoperatively. CB abnormalities and ERMs were classified according to Govetto’s staging systems. Results: Of the 67 eyes, 22 (34%) showed CB abnormalities at baseline. The mean BCVA increased from 0.42 at baseline to 0.20 LogMAR at final follow-up (p < 0.001). Neither ERM stage (p = 0.06) nor CB stage (p = 0.939) at baseline were significant predictors of vision improvement following surgery. Conclusions: Our results show that baseline BCVA, but not classification of CB changes and ERM at baseline, seems to be a useful predictor for functional outcomes following PPV with ERM and ILM peeling in the long-term.
Highlights
Epiretinal membrane (ERM) is a common retinal disease with a prevalence ranging from 2.2% to 28.9% [1,2,3]
The aim of this study was to evaluate the impacts of different stages of ERM and central bouquet (CB) abnormalities on the functional and anatomic outcomes following pars plana vitrectomy (PPV) with ERM and internal limiting membrane (ILM) peeling
This is a retrospective study including all consecutive patients suffering from idiopathic ERM that underwent PPV with 23 or 27 g and ERM ± ILM peeling at the Triemli City Hospital Zurich between 2014 and 2018 with a minimum follow-up of 3 months
Summary
Epiretinal membrane (ERM) is a common retinal disease with a prevalence ranging from 2.2% to 28.9% [1,2,3]. Previous studies have shown that epiretinal membranes (ERMs) may be associated with abnormal outer retinal anatomy. Long-term morphological and functional results of pars plana vitrectomy (PPV) with ERM and internal limiting membrane (ILM) peeling in eyes with central bouquet (CB) alterations have not yet been investigated. Methods: In a retrospective, consecutive study all patients underwent best corrected visual acuity (BCVA) testing and spectral domain optical coherence tomography (SD-OCT) before and after a mean of 20 months (range 3–70 months) postoperatively. Conclusions: Our results show that baseline BCVA, but not classification of CB changes and ERM at baseline, seems to be a useful predictor for functional outcomes following PPV with ERM and ILM peeling in the long-term
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