This is a case report of a 75-year-old pseudophakic male, who presented with a massive submacular hemorrhage on a background of neovascular age-related macular degeneration. Intravitreal perfluoropropane was used to attempt pneumatic displacement of the submacular hemorrhage. The next day, subconjunctival gas was observed, with no gas seen in the vitreous cavity. Fundal examination showed suprachoroidal detachment. CT images confirmed gas entrapment, with no choroidal hemorrhage identified. The following case report describes suprachoroidal gas as a complication of intravitreal injection of perfluoropropane for pneumatic displacement of submacular hemorrhage. To our knowledge, this is the first such case in the literature. We describe the approach in differentiating suprachoroidal gas from hemorrhage and comment on a plausible mechanism for this complication. This report also serves as a review of the current state of knowledge in the area of suprachoroidal gas as a complication of pneumatic retinopexy and sutureless vitrectomy.
Case Rep Ophthalmol 2021;12:894–898

中文翻译：

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脉络膜上气体：玻璃体内注射全氟丙烷的罕见并发症

这是一例 75 岁假晶状体男性的病例报告，他在新生血管性年龄相关性黄斑变性的背景下出现大量黄斑下出血。玻璃体内全氟丙烷用于尝试气动置换黄斑下出血。第二天，结膜下观察到气体，玻璃体腔内未见气体。眼底检查显示脉络膜上脱离。CT 图像证实气体滞留，未发现脉络膜出血。以下病例报告将脉络膜上气体描述为玻璃体内注射全氟丙烷用于黄斑下出血的气动置换的并发症。据我们所知，这是文献中的第一个此类案例。我们描述了区分脉络膜上气体与出血的方法，并评论了这种并发症的合理机制。本报告还回顾了脉络膜上气体作为气动视网膜固定术和无缝线玻璃体切除术的并发症领域的当前知识状态。
Case Rep Ophthalmol 2021；12:894–898