视神经由视网膜神经节细胞轴索汇集而成,当各种原因所致的视神经萎缩时,视网膜神经纤维层常有不同程度之损害。目前对视神经萎缩的诊断多忽视对视网膜神经纤维的观察,而主要依视乳头颜色和视功能损害而定,但两者常不一致,故观察视网膜神经纤维损害及视乳头形态将对视神经萎缩提供更加客观的指标。 Optic nerve by retinal ganglion axons together, when a variety of causes of optic atrophy, retinal nerve fiber layer often have varying degrees of damage. At present, the diagnosis of optic atrophy and more ignore the observation of retinal nerve fibers, and depending on depending on the color of the optic disc and visual impairment, but the two are often inconsistent, so the observation of retinal nerve fiber damage and optic nerve shape will provide a more optic nerve atrophy Objective indicators.