non-perfusionBNC²³⁶²¹³⁺¹ 例句 Extensive retinal hemorrhage and edema were found in the early stage. 52.9% showed retinal capillary vessel non-perfusion area and neovascularization in FFA after3 months. 发病初期，眼底表现以视网膜大量出血、水肿为主，发病3个月以上52.9% FFA显示视网膜毛细血管闭塞区形成； cnki