Department of Ophthalmology, University Hospital Schleswig-Holstein, University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany.
Tomography. 2022 Jul 6;8(4):1735-1741. doi: 10.3390/tomography8040146.
(1) Background: Silicone oil (SO) can be used as an endotamponade during vitreoretinal surgery for retinal detachment. There is emerging evidence that SO filling of the vitreous cavity and its removal may impact macular perfusion. So far, studies have not focused on choroidal sublayer perfusion, yet. (2) Methods: Optical coherence tomography angiography was applied in 19 patients with SO endotamponade before and four weeks after removal of SO. (3) Results: Perfusion of choriocapillaris increased significantly after SO removal, while perfusion of Haller's and Sattler's layer decreased significantly. (4) Conclusions: Removal of SO impacts choroidal perfusion and leads to a perfusion shift within choroidal sublayers. This study underlines that it is worth to conduct larger prospective studies that evaluate the choroidal perfusion and its functional implications in more detail.
(1) 背景：硅油（SO）可在视网膜脱离的玻璃体视网膜手术中用作内填塞。有新的证据表明，玻璃体腔中的 SO 填充及其去除可能会影响黄斑灌注。到目前为止，还没有研究集中在脉络膜亚层灌注上。(2) 方法：对 19 例 SO 内填塞的患者在 SO 去除前和去除后 4 周进行了光学相干断层扫描血管造影。(3) 结果：SO 去除后脉络膜毛细血管灌注明显增加，而 Haller 层和 Sattler 层的灌注明显减少。(4) 结论：SO 的去除会影响脉络膜灌注，并导致脉络膜亚层内的灌注转移。本研究强调，值得进行更大规模的前瞻性研究，更详细地评估脉络膜灌注及其功能意义。
