前色素膜炎即累及虹膜睫状体的炎症是以眼前部白细胞积聚与虹膜血管通透性增加为特征。由于白细胞释放各种酶,产生有毒超氧化代谢物并合成类脂炎症介质前列腺素、白三烯、血小板激活因子,使肌体遭受炎症损害。体外实验证明,许多物质包括C_(5a)、B—内啡肽、蛋氨酸脑啡肽、各种花生四烯酸代谢物、血小板激活因子、白细胞介素—1、 Anterior meningitis, an inflammation involving the iris ciliary body, is characterized by an accumulation of leukocytes in the front of the eye and increased iris vascular permeability. As leukocytes release various enzymes, produce toxic superoxide metabolites and synthesis of lipid inflammatory mediators prostaglandins, leukotrienes, platelet activating factor, the body suffered from inflammatory damage. In vitro experiments show that many substances including C_ (5a), B-endorphin, methionine enkephalin, a variety of arachidonic acid metabolites, platelet activating factor, interleukin-1,