非动脉炎性前部缺血性视神经病变（ｎｏｎａｒｔｅｒｉｔｉｃａｎｔｅｒｉｏｒｉｓｃｈｅｍｉｃｏｐｔｉｃｎｅｕｒｏｐａｔｈｙ，ＮＡＩＯＮ）是一种多因素性眼病，与众多全身和局部因素有关。全身因素中，高血压，夜间低血压，糖尿病，失血，血流变性异常等较为常见；眼局部因素主要与视盘解剖特征，眼压和屈光状态有关。在全身和局部各种因素共同作用下，睫状后动脉病变导致视盘和部分筛板后视神经缺血性损害是其发病的基础。尽可能针对各种相关因素以预防其发生和减轻病变程度至关重要，视不同情况可分别使用全身皮质类固醇，左旋多巴与卡比多巴，阿斯匹林，血液透析，高压氧，视神经鞘减压术等进一步治疗。 Nonarteritic anterior ischemic optic neuropathy (NAION) is a multifactorial eye disease that is associated with a number of systemic and local causes. Systemic factors, hypertension, nocturnal hypotension, diabetes, blood loss, abnormal blood flow and other more common; local eye factors and optic disc anatomy, intraocular pressure and refractive status. In the body and local factors under the joint action of the ciliary artery lesions lead to optic disc and part of the sieve plate ischemic posterior ischemic damage is the basis of its incidence. As much as possible for a variety of relevant factors to prevent its occurrence and reduce the degree of lesion is essential, depending on the circumstances may be the use of systemic corticosteroids, levodopa and carbidopa, aspirin, hemodialysis, hyperbaric oxygen, optic nerve Sheath decompression and other further treatment.