Over the last two decades, agents targeting vascular endothelial growth factor (VEGF) have revolutionized the treatment for ocular angiogenic diseases [1,2,3], including proliferative diabetic retinopathy (PDR), diabetic macular edema (DME), neovascular age-related macular degeneration (nAMD), and retinal vein occlusion (RVO). The gene discussed is VEGFA; the disease is proliferative diabetic retinopathy.