Abstract
Purpose :
To study the clinical characteristics, outcomes and rate of unintentional displacement in eyes treated for rhegmatogenous retinal detachment (RRD) with pars plana vitrectomy (PPV) and silicone oil (SO).
Methods :
This was a retrospective observational study. Overall, 50 eyes of 50 patients who underwent surgical repair by 23-gauge PPV and SO injection for primary RRD complicated by proliferative vitreoretinopathy (PVR) between December 01, 2018 and June 30, 2020, at a single Institutional Center, were followed. One thousand centistokes SO was used in all eyes. The patients postured face-down immediately after surgery. Blue-fundus autofluorescence (B-FAF) pictures were obtained at 1 month after surgical procedures using the Spectralis HRA+OCT (Heidelberg Engineering, Heidelberg, Germany)
Results :
Primary success rate was obtained in 44 eyes (88%) on which the final analysis was conducted. Preoperative PVR was grade A in 7 (15.9%), grade B in 28 (63.6) and grade C in 9 (20.5) eyes. Fovea was off and the detachment involved both the superior and inferior hemispheres of the retina in all cases. Breaks were located in the upper quadrants in 21 (47.7%) eyes, in the lower quadrants in 12 eyes (27.3%), and in both upper and lower quadrants in 11 (25%) eyes. Mean number of breaks was (2.4±1.9). Intraoperative PFCL was used in 30 (68.2%) eyes. Peeling of epiretinal membrane/internal limiting membrane in the macula area was performed in 13 (29.5%) of eyes during the first operation and carried out in all other eyes in occasion of SO removal. Preoperative BCVA was 2.1±1.0 logMAR and improved to 0.8±0.7 logMAR at the last follow-up (P < 0.0001). An upward unintentional retinal displacement was observed in 2 cases (4.5%).
Conclusions :
Pars plana vitrectomy and SO tamponade for complicated RRD are associated with good anatomical and functional outcomes and with a very low rate of unintentional retinal displacement. Of the factors potentially implicated in favoring displacement that were studied, none was found significant.
This is a 2021 ARVO Annual Meeting abstract.