葡萄膜是富含血管和色素的组织,与眼球和全身其它组织有广泛联系,从而表现出葡萄膜炎的多样性和复杂性。葡萄膜炎可直接由感染引起,临床上病因较明确。但约半数葡萄膜炎病因尚不清楚,其特点为:病程为亚急牲或慢性经过,反复发作,双眼发病;找不到病原体;发热疗法、激素及免疫抑制剂治疗有效;同时伴有全身 Uvea is a vascular and pigmented tissue that has extensive contact with the eyeball and other tissues throughout the body to show the diversity and complexity of uveitis. Uveitis can be caused directly by the infection, the clinical etiology more clearly. However, about half of the etiology of uveitis is not yet clear, characterized by: duration of subacute or chronic, recurrent, binocular onset; can not find the pathogen; fever therapy, hormones and immunosuppressive agents effective treatment; accompanied by systemic