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作者研究孤立的视神经炎(ON)48例,男16例, 女32例,年龄12～61岁(平均32.9岁),全部系白种人。其中球后视神经炎41例,视乳头炎7例。单侧受累41例,双侧受累7例。1次以上发作12例,发作间期2～95个月(平均19个月)。复发于同侧眼9例,对侧眼3例。MRI异常23例(48％),尤在T_2加权象明显,发现多发病灶19例,1个病灶4例,多
The authors studied isolated optic neuritis (ON) in 48 cases, 16 males and 32 females, aged 12 to 61 years (mean 32.9 years), all white. There were 41 cases of retrobulbar neuritis and 7 cases of papillitis. Unilateral involvement in 41 cases, bilateral involvement in 7 cases. More than one episode in 12 cases, seizure interval of 2 to 95 months (mean 19 months). Recurrent in the ipsilateral eye in 9 cases, the contralateral eye in 3 cases. MRI abnormalities in 23 cases (48%), especially in the T_2 weighted as obvious, found in 19 cases of multiple lesions, 1 lesions in 4 cases, and more