Herrmann C, Ludwig U, Duncker G
Universitätsklinik und Poliklinik für Augenheilkunde, Klinikum der Medizinischen Fakultät und Augenlaserzentrum Halle (An-Institut), Martin-Luther-Universität Halle-Wittenberg, Halle, Germany.
Ophthalmologe. 2008 Feb;105(2):193-204; quiz 205-6. doi: 10.1007/s00347-008-1696-0.
Various diagnostic procedures have been developed for analyzing the corneal surface. Corneal topographical measurements can be performed by classic Placido disc topographers and tomographers creating three-dimensional corneal models from cross-sectional images. Using a slit scanning system or the Scheimpflug technique additional information about the anterior segment can be obtained. New systems give us a wide range of diagnostic tools. Beside the measurement of the corneal anterior and posterior surfaces and point-to-point-pachymetry they enable analysis of corneal aberrations and measurement of the whole anterior segment, including the anterior chamber and the position of implants, pupil diameter, horizontal white-to-white and the kappa angle. Densitometry, statistical programs for the evaluation of corneal pathology and assistance with intraocular lens calculation following excimer laser treatment are further options available. This article is intended to give an overview of the principles and limitations of the various diagnostic systems.
已经开发出各种用于分析角膜表面的诊断程序。角膜地形图测量可由经典的普拉西多盘地形图仪和断层扫描仪进行，这些仪器从横截面图像创建三维角膜模型。使用裂隙扫描系统或申普夫鲁格技术，可以获得有关眼前节的更多信息。新系统为我们提供了广泛的诊断工具。除了测量角膜前表面和后表面以及逐点测厚外，它们还能分析角膜像差并测量整个眼前节，包括前房和植入物的位置、瞳孔直径、水平白对白距离和kappa角。密度测量、用于评估角膜病变的统计程序以及准分子激光治疗后人工晶状体计算辅助也是可用的进一步选项。本文旨在概述各种诊断系统的原理和局限性。
