EyeSys角膜分析系统的轮廓分辨率。

Contour resolution of the EyeSys Corneal Analysis System.

作者信息

Young J A, Talamo J H, Siegel I M

机构信息

Department of Ophthalmology, Massachusetts Eye & Ear Infirmary, Harvard Medical School, Boston 02114, USA.

出版信息

J Cataract Refract Surg. 1995 Jul;21(4):404-6. doi: 10.1016/s0886-3350(13)80529-9.

DOI:10.1016/s0886-3350(13)80529-9

PMID:8523283

Abstract

We investigated the accuracy of a conventional videokeratography instrument (Corneal Analysis System, EyeSys Laboratories) to measure contour information using specialized software developed by the manufacturer. Seven calibrated spheres were measured and the results tabulated. A contour resolution for all spheres for all reflected rings was found to be +/- 0.0047 mm, representing a 95% confidence interval. This level of resolution is high enough to obtain clinical value from using the EyeSys instrument as a contour measuring device.

摘要

我们使用制造商开发的专用软件，研究了传统的角膜地形图仪（角膜分析系统，EyeSys实验室）测量轮廓信息的准确性。测量了七个校准球体并将结果制成表格。发现所有反射环上所有球体的轮廓分辨率为±0.0047毫米，代表95%置信区间。这种分辨率水平足够高，足以使EyeSys仪器作为轮廓测量设备获得临床价值。