Buisset A, Leruez S
Service d'ophtalmologie, CHU d'Angers, 4, rue Larrey, 49100 Angers, France.
Service d'ophtalmologie, CHU d'Angers, 4, rue Larrey, 49100 Angers, France.
J Fr Ophtalmol. 2018 Dec;41(10):910-915. doi: 10.1016/j.jfo.2018.06.003. Epub 2018 Nov 16.
Homonymous lateral hemianopia follows an attack on the contralateral retrochiasmal visual pathways. In three patients with post-traumatic homonymous hemianopia, optical coherence tomographic (OCT) study of the ganglion cell layer thickness showed hemiretinal thinning contralateral to the visual field defect. This involvement could be explained by trans-synaptic degeneration of the pre-geniculate visual pathways, whose cell nuclei correspond to ganglion cells, which synapse with the damaged retrogeniculate visual pathways.
同向性偏盲是由对侧视交叉后视觉通路受损引起的。在3例创伤后同向性偏盲患者中，光学相干断层扫描（OCT）对神经节细胞层厚度的研究显示，与视野缺损对侧的半侧视网膜变薄。这种受累情况可以通过膝状体前视觉通路的跨突触变性来解释，该通路的细胞核与神经节细胞相对应，而神经节细胞与受损的膝状体后视觉通路形成突触。
