Supplementary Material for: Silicone Oil Migration into the Graft Interface after Descemet Stripping Automated Endothelial Keratoplasty in a Patient with a Past Surgical History of Silicone Oil Tamponade: A Case Report

We report a 42-year-old man with pseudophakic bullous keratopathy who previously underwent traumatic cataract surgery, pars plana vitrectomy with silicone oil injection, subsequent oil removal, and implantation of an angle-supported anterior chamber intraocular lens. He later underwent anterior chamber lens explantation, Artisan iris-claw lens implantation, and Descemet stripping automated endothelial keratoplasty (DSAEK). By postoperative day 9, multiple silicone oil droplets were observed at the donor–recipient interface, with a further increase in size and number by day 14. An anterior chamber washout was performed; however, droplets persisted at the surgical interface. This case highlights the risk of silicone oil entrapment at the DSAEK donor–recipient interface in eyes with prior vitreoretinal surgery and silicone oil tamponade. Thorough removal of residual silicone oil before donor lenticule insertion is essential to minimize interface-related complications.

本研究报告1例42岁男性假晶状体性大泡性角膜病变（pseudophakic bullous keratopathy）患者，该患者既往接受外伤性白内障手术、睫状体平坦部玻璃体切除术联合硅油注入术，后续行硅油取出术并植入房角支撑型前房型人工晶状体。此后患者先后接受前房型人工晶状体取出术、Artisan虹膜夹型人工晶状体植入术，以及后弹力层剥除自动角膜内皮移植术（DSAEK）。术后第9天，于供体-受体界面观察到多发硅油滴；至术后第14天，硅油滴的数量与体积均进一步增加。随后患者接受前房冲洗术，但手术界面仍残留硅油滴。本病例提示，既往行玻璃体视网膜手术并接受硅油填充的患者，在行DSAEK术后存在硅油潴留在供体-受体界面的风险。在植入供体角膜片前彻底清除残留硅油，是减少界面相关并发症的关键举措。