瞬目反射(blink reflex)是通过刺激一侧三叉神经分支——眶上神经,在同侧眼轮匝肌诱发出短潜伏期R_1和双侧长潜伏期R_2。作者对1例累及一侧三叉、面神经等多组颅神经及脑干的听神经瘤患者进行瞬目反射测试,现报告如下。患者女,38岁,因渐进性右耳听力下降1年,复视呛咳1月入院。患者于1年前打电话时发觉右耳听力下降,2月后感面部及舌麻木,1年后突然复视,右面部麻木无力伴吞咽呛咳,在当地医院治疗2月无效而来本院。入院检查右眼球外展不到边,颜面浅感觉减退,角膜反射减弱,口角歪斜、听力下降.咽反射消失。颅脑MRI显示右小脑桥脑角肿瘤,直径约3.0 cm×4.0 cm,脑干受压移位,肿瘤伴囊性变。入院诊断为右小脑桥脑角占位性病变(听神经瘤),伴右侧ⅤⅥⅦⅧⅨ颅神经受累。术后病理报告为听神经鞘膜瘤。术前瞬目反射测 Blink reflex induces a short latency (R_1) and a long latency (R_2) in the ipsilateral orbicularis muscle by stimulating the trigeminal branch of the trigeminal nerve, the supraorbital nerve. The author of a case involving the trigeminal side, facial nerve and other groups of cranial nerves and brainstem auditory neuroma patients blink reflex test, are as follows. Female patient, 38 years old, due to progressive decline in the right ear hearing for 1 year, diplopia cough January admission. Patients found the right ear hearing loss when they called a year ago. After February, they felt numbness in the face and tongue. After 1 year, they suddenly showed diplopia. The right facial numbness was accompanied by swallowing and coughing. They were ineffective in the local hospital for 2 months. . Right eye examination admission less than the edge of the outreach, facial feel decreased, corneal reflex, skew, hearing loss, pharyngeal reflex disappeared. Cerebral MRI showed right pontine pontine brain tumor, diameter of about 3.0 cm × 4.0 cm, pressure shift of the brainstem, tumor with cystic degeneration. Admission was diagnosed as right cerebellopontine angle occupying lesions (acoustic neuroma), with right Ⅴ Ⅵ VII Ⅷ Ⅸ cranial nerve involvement. Postoperative pathology report for acoustic nerve sheath tumor. Preoperative blink reflexometry