颅内视交叉(或视神经)海绵状血管瘤至今文献中仅报告6次。所有患者均因视交叉出血引起急性或亚急性视力下降。本文一例为52岁女性,因变性近视眼底改变于数年前行双眼周边部视网膜氩激光凝固术。视力:右0.6,左0.8,突然感到右眼下方视野有一阴影,并在二周内迅速恶化,视野缩小到正常的1/3,且 Intracranial optic chiasm (or optic nerve) cavernous hemangioma has so far only been reported in the literature 6 times. All patients had acute or subacute vision loss due to optic chiasmia. One case in this article is a 52-year-old woman who had her retinal argon laser photocoagulation around the eyes for several years because of degenerative myopia. Visual acuity: right 0.6, left 0.8, suddenly felt a shadow under the right eye, and deteriorated rapidly within two weeks, the visual field was reduced to normal 1/3, and