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.
Age
18–any
Sex
ALL
Healthy volunteers
Accepted
You may be eligible if
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).
You may not be if
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).
Clareo Health | Intraocular Pressure Accuracy and Variability of the Barraquer Tonometer
