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新生血管性青光眼(Neovascular Glaucoma,NVG)是继发于糖尿病性视网膜增殖性病变、视网膜中央静脉检塞、眼外伤、颈动脉栓塞等眼内或眼外疾病的继发性青光限。特点是虹膜及房角小梁网有新生血管和纤维血管膜形成。当小梁网上纤维血管膜尚未收缩牵拉虹膜根部,造成虹膜根部前粘连之前,是为继发性开角青光眼;当牵拉虹膜形成虹膜前粘连之后,即为继发性闭角青光眼。Weiss等(1977)认为虹膜新生血管的形成是由于眼前段组织缺氧或视网膜缺氧而致。当眼组织缺氧后,可产生一种有毒的代谢产物,即血管形成因子或血管刺激因素,导致眼前段新
Neovascular Glaucoma (NVG) is a secondary glaucoma secondary to intraocular or extra-ocular conditions such as diabetic retinopathy, central retinal vein occlusion, ocular trauma, and carotid embolism. Is characterized by iris and trabecular meshwork neovascularization and fibrovascular membrane formation. When the trabecular meshwork fiber membrane has not been contracted to stretch the root of the iris, resulting in the anterior iris root adhesions before, is a secondary open-angle glaucoma; when the iris is formed before the adhesion of the iris, it is secondary angle-closure glaucoma. Weiss et al. (1977) suggested that the formation of iris neovascularization is due to anterior segment hypoxia or retinal hypoxia. When the eye tissue hypoxia, can produce a toxic metabolites, namely angiogenic factors or vascular stimuli, leading to anterior segment of the new