Moshirfar Majid, Milner Dallin C, Martheswaran Tanisha, McCabe Shannon E, Ronquillo Yasmyne C, Hoopes Phillip C
Hoopes Vision Research Center, Hoopes Vision, Draper, Utah, USA.
John A. Moran Eye Center, University of Utah School of Medicine, Salt Lake City, Utah, USA.
Case Rep Ophthalmol. 2021 Sep 9;12(3):740-748. doi: 10.1159/000518012. eCollection 2021 Sep-Dec.
Intrastromal corneal ring segments (ICRSs) are an effective treatment for stabilizing and normalizing corneal shape in patients with keratoconus and other corneal ectasias. Intraoperative segment perforation through the corneal endothelium into the anterior chamber (AC) is an uncommon but known complication. However, perforation into the AC postoperatively is an exceedingly rare complication with only 3 reported cases in the literature. One case was due to Descemet membrane detachment and another due to ocular trauma. In the third case, the mechanism for perforation was unclear. We present the fourth case of delayed ICRS perforation due to silent migration through the endothelium into the AC. We also present all reported cases in the literature of intraoperative and postoperative perforation into the AC.
角膜基质内环形片段（ICRS）是治疗圆锥角膜和其他角膜扩张症患者角膜形状稳定及正常化的有效方法。术中片段经角膜内皮穿孔进入前房（AC）是一种罕见但已知的并发症。然而，术后穿孔进入前房是一种极其罕见的并发症，文献中仅报道了3例。1例是由于Descemet膜脱离，另1例是由于眼外伤。第3例中，穿孔机制尚不清楚。我们报告第4例因ICRS片段经内皮悄然迁移至前房导致的延迟穿孔。我们还呈现了文献中所有报道的术中及术后穿孔进入前房的病例。
