例1:男,16岁。因双眼视物模糊4天入院。视力:右眼0.4,左眼0.3,外眼正常。眼底检查:双眼视乳头边界不清楚,顳侧色淡,余无异常。双眼周边及平面视野均明显缩小。颅脑超声探查,脑中线无移位;头颅,蝶鞍X线片未见病变,无骨质破坏。诊断为双眼急性视神经炎。全身应用抗生素和肾上腺皮质激素,隔日球后注射氟美松5mg,治疗5天后视力有所恢复,右0.6,左0.4。继续用药至十天后,视力反而下降,双眼0.3,并述额顶部疼痛。即转省级医院,颅脑CT扫描见鞍区占位性病变。手术后病理诊断为鞍旁胶质瘤。例2:男,54岁。因眼朦一周就诊,按球后视神经炎治疗,肌注青霉素,口服强的松、维生素C、维生索B_1等,球后注射氟美松共3次,视力曾一度提高,但半月后眼 Example 1: Male, 16 years old. Due to binocular vision obscured 4 days admission. Eyesight: Right eye 0.4, left eye 0.3, outer eye normal. Fundus examination: binocular vision nipple border is unclear, temporal pale, I no exception. Peripheral and planar vision were significantly reduced. Brain ultrasound, no shift in the midline of the brain; skull, sella no change in the X-ray films, no bone destruction. Diagnosis of bilateral acute optic neuritis. Systemic antibiotics and adrenal cortex hormones, injection of dexamethasone 5mg every other day after treatment, visual acuity recovered after 5 days, right 0.6, left 0.4. Continue to medication to ten days later, but decreased visual acuity, eyes 0.3, and quota top pain. That turn to the provincial hospital, cranial brain CT scan of the saddle area occupying lesions. Postoperative pathological diagnosis of parasellar glioma. Example 2: Male, 54 years old. Due to blindfolded treatment for a week, according to retrobulbar optic neuritis treatment, intramuscular injection of penicillin, oral prednisone, vitamin C, vitamin B_1 and so on, after injection of dexamethasone a total of 3 times, visual acuity was increased, but after half an eye