VARIABILITY OF ULTRASONIC PACHOMETRY

被引：62

作者：

GORDON, A

BOGGESS, EA

MOLINARI, JF

机构：

[1] School of Optometry/The Medical Center, The University of Alabama at Birmingham, Birmingham, AL

[2] Tampa, FL

[3] Panama City Beach, FL

来源：

OPTOMETRY AND VISION SCIENCE | 1990年 / 67卷 / 03期

关键词：

Corneal thickness; Pachometry; Ultrasonic pachometry; Variability;

D O I：

10.1097/00006324-199003000-00003

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

We evaluated the intraobserver, interobserver, and intersession variability of the Humphrey model 580 ultrasonic pachometer. Twenty eyes (10 subjects) were measured in the intraobserver study. Forty-two eyes (21 subjects) were measured in the interobserver and intersession studies. Multiple analysis of variance revealed no statistical differences between observers or between right and left eyes. A marginally significant time (intersession) effect was found, with greater corneal thicknesses measured in the afternoon. The intraobserver variability averaged 6 µm, whereas the interobserver and intersession variabilities were approximately 11 µm and 14 µm, respectively. The relative simplicity, objectivity, and repeatability of ultrasonic pachometry should enable corneal thickness changes to be monitored in clinical practice on a more routine basis. © 1990 American Academy of Optometry.

引用

页码：162 / 165

页数：4

共 7 条

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