视交叉的损害在临床上并非罕见,但其本身病变不多,主要是由其周围各种病变(如鞍内或鞍周肿瘤、炎症、血管性疾病等)压迫视交叉,发生视力、视野、眼底等一系列改变。在这些病变中以肿瘤占多数。头痛和视力减退又常常是视交叉周围肿瘤的早期主要症状,所以大部分病人往往先就诊于眼科,眼科医师如未在这方面引起注意,常 Damage to the optic chiasm is not uncommon in the clinic, but it has few lesions in its own right. It is mainly caused by various lesions around it (such as intra-selary or perianal tumors, inflammation, vascular diseases, etc.) that oppress the optic chiasm, causing vision, vision, Eyes and a series of changes. Tumors predominate in these lesions. Headache and vision loss are often the main early symptoms of tumors around the optic chiasm. Therefore, most patients are often referred to the ophthalmologist first. If the ophthalmologist does not pay attention in this regard, often