Husinsky W, Mitterer S, Altmann J, Grabner G, Baumgartner I, Skorpik F, Asenbauer T
Institut für Allgemeine Physik, Technical University, Vienna, Austria.
Refract Corneal Surg. 1991 Sep-Oct;7(5):385-9.
A new system is presented that allows a variable trephination of donor corneas for the preparation of corneal buttons used in penetrating keratoplasty. With the help of a computer-controlled positioning system that uses high-precision micropositioning elements (both translation and rotational stages) the donor cornea is removed, epithelial side up, in a fixation device in front of a focused excimer laser beam (ArF, lambda = 193 nm). User friendly computer software allows the surgeon to select a variety of parameters (diameter, shape, angle of trephination) of the corneal graft. Histological and electron microscopical data of human corneas trephined with this "Excimer Laser Corneal Shaping System" are presented.
本文介绍了一种新系统，该系统可对供体角膜进行可变环钻术，以制备穿透性角膜移植术中使用的角膜植片。借助计算机控制的定位系统，该系统使用高精度微定位元件（平移和旋转平台），将供体角膜上皮面朝上放置在聚焦准分子激光束（ArF，波长=193nm）前的固定装置中进行切除。用户友好的计算机软件允许外科医生选择角膜移植的各种参数（直径、形状、环钻角度）。文中还给出了使用这种“准分子激光角膜塑形系统”进行环钻的人角膜的组织学和电子显微镜数据。
