Lim Laurence S, Aung Han T, Aung Tin, Tan Donald T H
Singapore National Eye Centre, Singapore, Republic of Singapore.
Am J Ophthalmol. 2008 Jan;145(1):81-90. doi: 10.1016/j.ajo.2007.08.019. Epub 2007 Oct 29.
To assess and describe the uses of anterior segment optical coherence tomography (OCT) in the evaluation of the cornea before and after lamellar corneal transplantation procedures.
Prospective, noncomparative, observational case series.
Seven eyes of seven patients undergoing anterior and posterior lamellar corneal transplantation procedures at the Singapore National Eye Centre were included in the study. High-resolution anterior segment OCT scans of the cornea and anterior segment were performed both before and after lamellar transplantation procedures on the cornea with the Visante anterior segment OCT system (Visante OCT; Carl Zeiss Meditec, Inc, Dublin, California, USA), and the imaging findings were correlated with the clinical picture. Measurements of lamella thickness were performed with the software provided.
Anterior segment OCT images were able to provide valuable information on donor apposition, Descemet membrane detachment after deep anterior lamellar keratoplasty (DALK), posterior lamellar dislocation, primary graft failure, and anterior chamber crowding with consequent chamber angle encroachment and pupillary block after Descemet stripping automated endothelial keratoplasty (DSAEK).
Anterior segment OCT is a valuable imaging tool for assessing the feasibility of lamellar transplantation surgery in the diseased cornea and in the management of surgical complications after such procedures.
评估并描述眼前节光学相干断层扫描（OCT）在板层角膜移植手术前后角膜评估中的应用。
前瞻性、非对比性观察病例系列。
本研究纳入了新加坡国立眼科中心7例接受前后板层角膜移植手术患者的7只眼。使用Visante眼前节OCT系统（Visante OCT；卡尔蔡司医疗技术公司，美国加利福尼亚州都柏林）在角膜板层移植手术前后对角膜和眼前节进行高分辨率眼前节OCT扫描，并将影像学结果与临床表现相关联。使用随附软件测量板层厚度。
眼前节OCT图像能够提供关于供体贴合、深板层角膜移植术（DALK）后Descemet膜脱离、后板层脱位、原发性移植失败以及Descemet膜剥脱自动内皮角膜移植术（DSAEK）后前房拥挤及随之而来的房角侵犯和瞳孔阻滞等有价值的信息。
眼前节OCT是评估病变角膜板层移植手术可行性及此类手术后手术并发症处理的一种有价值的影像学工具。
