No blood flow could be detected in all 9 cases of vitreous membranes and 10 cases of posterior vitreous detachment .

在全部9例 玻璃体 机 化 膜及10例玻璃体后脱离病例均未探及血流。

We mainly observe eyes which with or without posterior vitreous detachment ( PVD ) vitreous hemorrhage organization retinal detachment and fibrovascular membranes during the operation .

术中重点观察有无璃体后脱离（posteriorvitreousdetachment，PVD）、 玻璃 体积 血 机 化、视网膜脱离及纤维增殖 膜。