Siu A W
Department of Optometry and Radiography, Faculty of Health and Social Sciences, Hong Kong Polytechnic University, Hung Hom.
Med Eng Phys. 1998 Mar;20(2):109-13. doi: 10.1016/s1350-4533(98)00005-8.
A new instrument to measure corneal thickness is described. The design was based on the well-established optical principle of pachometry and its operation required only basic clinical skills. The instrument measures corneal thickness using a newly developed computer-aided paradigm in order to minimise the inter- and intra-subject variability commonly associated with the original optical technique. Preliminary clinical trials showed that it provides fast, repeatable and objective measurements comparable to ultrasonic pachometry, and no physical contact with the eye was required throughout the procedure. It combines the advantages of the two currently employed techniques and it has potential clinical applications in monitoring the dynamic corneal hydration response in vivo.
本文描述了一种用于测量角膜厚度的新型仪器。其设计基于已确立的光学测厚原理，操作仅需基本临床技能。该仪器采用新开发的计算机辅助模式测量角膜厚度，以尽量减少通常与原始光学技术相关的受试者间和受试者内变异性。初步临床试验表明，它能提供与超声测厚法相当的快速、可重复且客观的测量结果，并且在整个过程中无需与眼睛进行物理接触。它结合了目前两种常用技术的优点，在监测体内角膜动态水合反应方面具有潜在的临床应用价值。
