由于蝶窦的外侧壁毗邻视神经管 ,蝶窦占位性病变的临床症状有时以视力下降为首发症状。随着影像学技术和鼻内窥镜手术的推广应用 ,因蝶窦病变引起的视力下降疗效有了提高。现将我科于 1 996年 8月～ 1 999年 2月收治的 5例患者报告如下。1　资料与方法本组 5例 ,男 2例 ,女 3例 Because the lateral wall of the sphenoid sinus is adjacent to the optic canal, the clinical symptoms of sphenoid sinus space occupying lesions are sometimes the first symptoms of vision loss. With the advancement and application of imaging techniques and nasal endoscopic surgery, the curative effect of vision loss caused by sphenoid sinus lesions has improved. The five patients admitted to our department from August 996 to February 1999 are reported below. 1 Materials and Methods 5 patients in this group, 2 males and 3 females