CLINICAL-EVALUATION OF A PORTABLE ULTRASONIC AND A STANDARD OPTICAL PACHOMETER

被引：16

作者：

PATEL, S

STEVENSON, RWW

机构：

[1] Department of Vision Sciences, Glasgow Caledonian University, Glasgow

来源：

OPTOMETRY AND VISION SCIENCE | 1994年 / 71卷 / 01期

关键词：

PACHOMETRY; ULTRASONIC PACHOMETRY; OPTICAL PACHOMETRY;

D O I：

10.1097/00006324-199401000-00009

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

The clinical performance of a portable ultrasonic pachometer was compared with a modified optical pachometer on a group of normal subjects. The mean central corneal thickness according to optical pachometry using the ''edge-to-edge'' method of optical doubling was 0.553 mm (SD = +/-0.022). The mean central corneal thickness using the ultrasonic device was 0.506 mm (SD = +/-0.039). The differences between the means was statistically significant (at 1% level of probability). Based on the light distribution within the corneal optical section viewed during optical pachometry a hypothesis is derived supporting the notion that optical pachometry tends to overestimate corneal thickness rather than ultrasonic pachometry underestimating corneal thickness.

引用

页码：43 / 46

页数：4

共 21 条

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