Comparison of Ultrasonic Pachymetry With Orbscan in Corneal Haze

Status Completed

Clinical Trial Summary

This study is planned to compare the results of ultrasonic and Orbscan pachymetry in corneal haze not related to surgery. Corneal haze is graded with slit-lamp by a single examiner. Ultrasonic and Orbscan II pachymetry measurements are obtained. Paired t and Kruskal-Wallis tests are used to evaluate the difference between ultrasonic and Orbscan pachymetry measurements. Correlation of the two methods and haze grade is determined with Kendall’s tau-b correlation analysis.

Clinical Trial Description

We planned this study to compare the results of ultrasonic and Orbscan pachymetry in corneal haze not related to surgery. In this institutional based, prospective, controlled clinical trial subjects with corneal haze not related to surgery are included. Normal eyes are used as control group to calculate the customized acoustic factor. Corneal haze is graded with slit-lamp by a single examiner. Ultrasonic and Orbscan II pachymetry measurements are obtained by one technician each masked to the other measurement. Paired t and Kruskal-Wallis tests are used to evaluate the difference between ultrasonic and Orbscan pachymetry measurements. Correlation of the two methods and haze grade is determined with Kendall’s tau-b correlation analysis. According to the results of the study, we will determine which method is accurate in subjects with corneal haze. ;

Study Design

Observational Model: Defined Population, Primary Purpose: Screening, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

Corneal Opacity

Clinical Trial Details

NCT number	NCT00439114
Study type	Observational
Source	Baskent University
Contact
Status	Completed
Phase	N/A
Start date	July 2005
Completion date	June 2006

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