Posterior Vitreous Detachment Determines the Clinical Impact of Fibrovascular Membrane Fibrosis After Anti-VEGF Treatment in Proliferative Diabetic Retinopathy: A Real-World Study

PVD status critically determines the clinical manifestation and prognosis of post-anti-VEGF FVM fibrosis in PDR. This PVD-dependent pattern challenges the conventional view that FVM fibrosis inevitably leads to "Crunch syndrome" and creates a risk stratification framework that can guide individualized surgical timing decisions, potentially improving functional outcomes in advanced PDR.