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Intraocular Pressure Accuracy and Variability of the Barraquer Tonometer

The recruitment status of this study is unknown because the information has not been verified recently.
Verified May 2008 by Barnes Retina Institute.
Recruitment status was  Recruiting
Sponsor:
Information provided by:
Barnes Retina Institute
ClinicalTrials.gov Identifier:
NCT00409669
First received: December 8, 2006
Last updated: May 6, 2008
Last verified: May 2008
History of Changes

December 8, 2006
May 6, 2008
November 2006
November 2008   (final data collection date for primary outcome measure)
  • Central corneal thickness as measured by pachymetry [ Time Frame: at time of measurement ] [ Designated as safety issue: No ]
  • Intraocular pressure as measured by Schiotz tonometer [ Time Frame: at time of measurement ] [ Designated as safety issue: No ]
  • Tonopen [ Time Frame: at time of measurement ] [ Designated as safety issue: No ]
  • Barraquer tonometer [ Time Frame: at time of measurement ] [ Designated as safety issue: No ]
  • and Perkins tonometer [ Time Frame: at time of measurement ] [ Designated as safety issue: No ]
  • Central corneal thickness as measured by pachymetry
  • Intraocular pressure as measured by Schiotz tonometer
  • Tonopen
  • Barraquer tonometer
  • and Perkins tonometer
Complete list of historical versions of study NCT00409669 on ClinicalTrials.gov Archive Site
Not Provided
Not Provided
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Intraocular Pressure Accuracy and Variability of the Barraquer Tonometer
Study to Compare the Accuracy and Variability of the Barraquer Tonometer With Other Methods of Tonometry

To determine if the Barraquer tonometer provides an accurate and reliable measurement of intraocular pressure. The Barraquer tonometer is a device used to safely and painlessly measure intraocular pressure.

Intraocular pressure will be checked using four different methods of tonometry. These four methods will include Tonopen, Goldmann applanation tonometry, Schiotz tonometry, and Barraquer tonometer. The data will then be compared to determine the reliability and accuracy of the Barraquer tonometer.
Interventional
Not Provided
Allocation: Non-Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Elevated Intraocular Pressure
Device: Barraquer tonometer
barraquer tonometer
Not Provided
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
300
November 2008
November 2008   (final data collection date for primary outcome measure)

Inclusion Criteria:

  1. All patients of Barnes Retina Institute who are scheduled to undergo vitreoretinal surgery.
  2. All patients scheduled for routine eye examination at the Washington University Eye Clinic or Barnes Jewish Eye Clinic.
  3. All ages (patients seen at these locations are adult patients >18 years of age).

Exclusion Criteria:

  1. Any patient who is seen in the outpatient clinics for an urgent or emergency ophthalmological issue.
  2. Any patient who has a contraindication to routine, noninvasive methods of tonometry and/or pachymetry (ie corneal ulcer).
Both
18 Years and older
Yes
Contact: Arghavan Almony, MD 314 367 1278 ext 2287 almony@vision.wustl.edu
United States
 
NCT00409669
BRI 06-0987
Not Provided
Arghavan Almony, M.d., Barnes Retina Institute
Barnes Retina Institute
Not Provided
Principal Investigator: Gilbert Grand, MD Washington University School of Medicine and Barnes Retina Institute
Barnes Retina Institute
May 2008

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