Na Kyeong Ik, Lee Won June, Kim Young Kook, Jeoung Jin Wook, Park Ki Ho
Department of Ophthalmology, Seoul National University College of Medicine Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea.
J Glaucoma. 2017 Jul;26(7):665-668. doi: 10.1097/IJG.0000000000000684.
The authors visualized arterioles from the peripapillary choroid to the optic nerve head in vivo, using swept-source optical coherence tomography angiography.
In this case series, we present 3 eyes with visible centripetal branches from the peripapillary choroid. The 3 eyes were diagnosed as glaucoma suspect, normal-tension glaucoma, and primary open-angle glaucoma. In the en face projection images of the choroidal layer, obtained by swept-source optical coherence tomography angiography, the vessels from the peripapillary choroid to the optic nerve head were observed in all 3 eyes; one of them was further evaluated by indocyanine green angiography using the Heidelberg retina angiograph. The filling pattern, as viewed on high-speed indocyanine green angiographic video, confirmed that the vessels were arterioles originating from the peripapillary choroid and supplying the prelaminar region of the optic nerve head.
The prelaminar region of the optic nerve head might be supplied by the peripapillary choroid in addition to the known major blood supply from the short posterior ciliary arteries.
作者使用扫频源光学相干断层扫描血管造影术在体内观察从视乳头周围脉络膜到视神经乳头的小动脉。
在这个病例系列中，我们展示了3只眼中可见的来自视乳头周围脉络膜的向心性分支。这3只眼分别被诊断为青光眼可疑、正常眼压性青光眼和原发性开角型青光眼。在通过扫频源光学相干断层扫描血管造影术获得的脉络膜层的正面投影图像中，在所有3只眼中均观察到了从视乳头周围脉络膜到视神经乳头的血管；其中一只眼使用海德堡视网膜血管造影仪通过吲哚菁绿血管造影术进行了进一步评估。在高速吲哚菁绿血管造影视频上观察到的充盈模式证实，这些血管是起源于视乳头周围脉络膜并供应视神经乳头筛板前区的小动脉。
除了已知的来自睫状后短动脉的主要血液供应外，视神经乳头筛板前区可能还由视乳头周围脉络膜供血。
