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Intraocular Pressure Accuracy and Variability of the Barraquer Tonometer | Clinical Trials | Clareo Health

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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

NCT00409669•Barnes Retina Institute

Summary

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.

Detailed Description

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.

Eligibility

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

Yes

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).

Locations (1)

Washington University School of Medicine and Barnes Jewish Hospital

St Louis, Missouri, United States

Key Dates

Start Date

November 1, 2006

Primary Completion Date

November 1, 2008

Completion Date

November 1, 2008

Last Updated

May 9, 2008

Enrollment

300

ESTIMATED participants

Conditions

Elevated Intraocular Pressure

Interventions

Barraquer tonometer

DEVICE

Contacts

Arghavan Almony, MD

CONTACT

314 367 1278 almony@vision.wustl.edu

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Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: May 9, 2008Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

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Intraocular Pressure Accuracy and Variability of the Barraquer Tonometer

Inclusion Criteria

Exclusion Criteria

Safety and Intraocular Lowering Effect of Delivery of Travoprost Evolute® in Subjects With Elevated Intraocular Pressure

Study to Compare the Safety and Efficacy of ALZ-1101 to Latanoprost in Patients With Intraocular Pressure Inadequately Controlled by Latanoprost

A Study of AR-12286 in Patient With Elevated Intraocular Pressure (IOP)