视神经乳头血管炎Ⅰ型是由视神经乳头内的睫状血管小分支所发出的睫状动脉的炎性病变引起,临床表现为视神经乳头水肿,患者视力正常或有轻微减退,常为单眼受累[1]。近年来临床采用大剂量皮质类固醇药物治疗视神经乳头血管炎Ⅰ型取得显著效果,可大大缩短病程[1],但该疗法因激素剂 Optic papillomavasculitis type I is caused by the inflammatory lesions of the ciliary arteries that originate from the small ciliary branch within the optic nerve head. The clinical manifestation is papilledema, with normal or slightly diminished visual acuity in patients with monocular involvement [1 ]. In recent years, clinical use of large doses of corticosteroids in the treatment of optic nerve papillary vasculitis type Ⅰ achieved significant results, can greatly shorten the course [1], but the therapy due to hormonal agents