Abstract:
UNASSIGNED: Patients who have undergone penetrating keratoplasty may have corneal edema because of endothelial cell dysfunction. Scleral lens wear may exacerbate edema, particularly if lens fit is suboptimal. Distinguishing between edema because of inherent endothelial cell dysfunction and swelling because of scleral lens-related hypoxia can be challenging. It is necessary, however, to identify the most likely cause of increased corneal thickness to determine whether the patient simply needs refitting for a different lens design or needs additional surgical intervention. This case report describes the utility of corneal tomographic imaging before and after scleral lens wear both to estimate endothelial cell function and to direct decisions when designing a scleral lens for a post-transplant eye.
摘要:
■行穿透性角膜移植术的患者可能由于内皮细胞功能障碍而出现角膜水肿。巩膜镜片磨损可能会加剧水肿,特别是如果镜头配合是次优的。区分由于固有的内皮细胞功能障碍引起的水肿和由于巩膜晶状体相关的缺氧引起的肿胀可能具有挑战性。这是必要的,然而,确定角膜厚度增加的最可能原因,以确定患者是否需要改装不同的晶状体设计或需要额外的手术干预。此病例报告描述了在巩膜镜片佩戴之前和之后进行角膜断层成像的实用性,以评估内皮细胞功能并在为移植后的眼睛设计巩膜镜片时指导决策。