鼻咽癌放疗后视神经损伤国内文献报道较少，找们自1994年2月以来，在门诊随防者中观察到12例，其中4例单眼失明，其余者均有明显的视力减退，报告如下。临床资料本组男性10例，女性2例。年龄38－62岁，平均53岁。病理均为鳞癌Ill级。鼻咽癌原发灶：肿瘤局限于鼻咽腔内7例，3例 Nasopharyngeal carcinoma after radiotherapy of optic nerve injury less reported in the domestic literature, looking for them since February 1994, outpatient follow-up with 12 cases were observed, of which 4 cases of monocular blindness, the remaining significant visual loss, the report is as follows . Clinical data of this group of 10 males and 2 females. Age 38-62 years old, average 53 years old. Pathology are grade III squamous cell carcinoma. Nasopharyngeal primary tumor: tumor confined to nasopharyngeal cavity in 7 cases, 3 cases