Intraocular Pressure Accuracy and Variability of the Barraquer Tonometer
| Status: | Completed |
|---|---|
| Conditions: | Ocular |
| Therapuetic Areas: | Ophthalmology |
| Healthy: | No |
| Age Range: | 18 - Any |
| Updated: | 4/2/2016 |
| Start Date: | November 2006 |
| End Date: | November 2008 |
| Contact: | Arghavan Almony, MD |
| Email: | almony@vision.wustl.edu |
| Phone: | 314 367 1278 |
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. 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.
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.
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).
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