论文部分内容阅读
视网膜协会1989年倡议对增殖性玻璃体视网膜病变的分类重新评价并进行必要的修改。 A级:指可辨认最早期的眼内增殖。即玻璃体基质中色素细胞增殖形成的色素团块。下部视网膜表面也可见到丛聚的带色素的细胞。渗出物进入玻璃体腔,故Tyndall阳性的后玻璃体表面变化较少,且较清晰。 B级:视网膜内表面有皱褶并有边缘卷曲或不规则的破裂。因有视网膜前膜致使视网膜可显得僵硬,视网膜血管弯曲,而该膜甚薄,用间接眼底镜看不见,玻璃体活动度减小。 C级:具有全厚度的僵硬视网膜皱褶。又
The Retina Society’s 1989 initiative re-evaluates the classification of proliferative vitreoretinopathy and makes the necessary changes. Grade A: refers to the earliest visible intraocular proliferation. That is, the pigment mass formed by the proliferation of pigment cells in the vitreous matrix. Clustered pigmented cells can also be seen on the surface of the lower retina. Exudate into the vitreous cavity, so Tyndall positive posterior vitreous surface changes less, and more clearly. Grade B: Ruptured inner surface of the retina with curled or irregular rupture. Due to the pre-retinal membrane so that the retina can appear stiff, retinal blood vessels bend, while the membrane is very thin, indirect ophthalmoscope can not see the vitreous activity decreased. Class C: stiff full-thickness retinal folds. also