Text Size

Comparison of Ultrasonic Pachymetry With Orbscan in Corneal Haze

This study has been completed.
Sponsor:
Information provided by:
Baskent University
ClinicalTrials.gov Identifier:
NCT00439114
First received: February 21, 2007
Last updated: NA
Last verified: February 2007
History: No changes posted

February 21, 2007
February 21, 2007
July 2005
Not Provided
Not Provided
Not Provided
No Changes Posted
Not Provided
Not Provided
Not Provided
Not Provided
 
Comparison of Ultrasonic Pachymetry With Orbscan in Corneal Haze
Comparison of Ultrasonic Pachymetry With Orbscan in Corneal Haze

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.

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.
Observational
Observational Model: Defined Population
Primary Purpose: Screening
Time Perspective: Cross-Sectional
Time Perspective: Prospective
Not Provided
Not Provided
Not Provided
Not Provided
Corneal Opacity
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
40
June 2006
Not Provided

Inclusion Criteria:

  • Patients with significant corneal haze on slit-lamp are included in the study group. 50 eyes of 50 age-matched patients with normal eye and clear cornea are included in the control group. Only one eye of each subject is included.

Exclusion Criteria:

  • Exclusion criteria to participate in the study are previous ocular surgery, history of contact lens use, glaucoma, and topical ocular medication use, excluding artificial tears.
Both
18 Years to 71 Years
Yes
Contact information is only displayed when the study is recruiting subjects
Turkey
 
NCT00439114
KA05/207
Not Provided
Not Provided
Baskent University
Not Provided
Principal Investigator: Rana Altan-Yaycioglu, M.D. Baskent University, Faculty of Medicine, Department of Ophthalmology
Baskent University
February 2007

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP