Supplementary Material for: Ultra-Widefield OCT images of Proliferative Vitreoretinopathy under Silicone Oil

Introduction: Proliferative vitreoretinopathy (PVR) is a condition in which proliferation forms after rhegmatogenous retinal detachment (RRD) surgery or old RRD, and sometimes PVR can occur under silicone oil (SO). Here, we report two cases of PVR in which we evaluated preoperative B-scan images of proliferation under SO using ultra-widefield swept-source OCT (UWF-SS-OCT).
Case presentation: The first case was a 61-year-old male who presented with PVR under SO tamponade after multiple pars plana vitrectomies (PPVs) at the previous hospital, and the second case was a 23-year-old man patient who was diagnosed with Coats disease in childhood and presented with PVR under SO after PPV for total rhegmatogenous retinal detachment at our hospital. B-scan images of UWF-SS-OCT provided findings of epiretinal two-layered proliferation or emulsified SO in the peripheral area.
Conclusion: UWF-SS-OCT is useful for preoperative assessment of the proliferation of PVR before SO removal. In addition, peculiar proliferation may occur in the eye under SO.