Vidal-Villegas Beatriz, Miralles de Imperial-Ollero Juan Antonio, Santos Bueso Enrique, García-Feijoo Julián, Villegas-Pérez Maria Paz
Ophthalmology Service, Hospital Clínico San Carlos, and Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Universidad Complutense, Madrid, Spain.
Red Temática de Investigación Cooperativa OftaRed, Madrid, Spain.
Case Rep Ophthalmol. 2021 Sep 16;12(3):773-777. doi: 10.1159/000518285. eCollection 2021 Sep-Dec.
The purpose is to study for the first time the vascular plexuses and the retinal nerve fiber layer and raphe of a patient with a very uncommon anatomical variation: an anomalous retinal artery supplying the whole macula. We used multimodal imaging, en face spectral-domain optic coherence tomography, and spectral-domain optic coherence tomography angiography. One patient presented in his left eye a very unusual anatomical variation of macular vascularization. A retinal artery deriving from the inferior temporal retinal artery irrigated the whole macula. The formation of the papillomacular bundle and the temporal raphe nerve fiber layer has been attributed to the earlier development of the central retina and to the existence of 2 distinct watershed zones. However, there are very uncommon anatomical variations of the retinal vasculature in which large retinal vessels cross the raphe and could influence the morphology and structure of the nerve fiber layer of the posterior pole. We review the literature on the subject and document for the first time an anomalous artery that irrigates the whole macula, normal thickness and morphology of the nerve fiber layer, and the temporal raphe.
目的是首次研究一名具有非常罕见解剖变异的患者的血管丛、视网膜神经纤维层和中缝：一条异常视网膜动脉供应整个黄斑区。我们使用了多模态成像、正面谱域光学相干断层扫描和谱域光学相干断层扫描血管造影术。一名患者左眼出现了非常不寻常的黄斑血管化解剖变异。一条源自颞下视网膜动脉的视网膜动脉灌注整个黄斑区。乳头黄斑束和颞侧中缝神经纤维层的形成归因于视网膜中央较早的发育以及两个不同分水岭区的存在。然而，视网膜血管系统存在非常罕见的解剖变异，其中大的视网膜血管穿过中缝，可能会影响后极神经纤维层的形态和结构。我们回顾了关于该主题的文献，并首次记录了一条灌注整个黄斑区的异常动脉、神经纤维层的正常厚度和形态以及颞侧中缝。
