视神经萎縮 病因学和发病机理。視神經萎縮分为两大类型:继发性(白色萎縮)者,发生在視神經炎及視乳头水肿之后,和原发性或單純性(灰色萎縮)者,其最常見原因为視神經纤维的全部外伤性損伤,中樞神經系統的梅毒性疾病,脑肿瘤。症状。中心視力降低,視野收縮。白色萎縮乳头境界不清,而灰色萎縮乳头境界清楚視网膜动脉狹窄。 Etiology and pathogenesis of optic nerve atrophy. Optic atrophy is divided into two major types: secondary (atrophy), occurs after optic neuritis and papilledema, and primary or simple (gray atrophy), the most common cause of all traumatic optic nerve fibers Sexual injury, syphilis disease of the central nervous system, brain tumor. symptom. Center vision decreased, vision contraction. White atrophy nipple realm unclear, while the gray atrophy nipple clear retinal artery stenosis.