Vascular Endothelial Growth Factor in Plasma and Vitreous Fluid of Patients with Proliferative Diabetic Retinopathy Patients after Intravitreal Injection of Bevacizumab

Vitreous and plasma VEGF levels were increased markedly in patients with PDR. VEGF concentrations in vitreous and plasma were decreased significantly after IVB into PDR eyes, and the effect lasted from 4.4 ± 2.2 days to 34.8 ± 33.7 days after injection.