Automated Applanation Tonometry - Updated
Duke University
200 participants
Mar 2, 2026
INTERVENTIONAL
Conditions
Summary
Goldmann Applanation Tonometry (GAT) is considered the clinical gold standard for eye pressure measurements and yet it is known to be a subjective measurement with limited repeatability and limited portability. Another clinical standard for checking eye pressure is known as the pneumotonometer. This method is more objective but not portable. The purpose of this study is to develop new methods of measuring eye pressure that are more objective, reproducible and portable. In this study, the investigators will be comparing the eye pressure measurements using 2 investigational methods to GAT and pneuumotonometer.
Eligibility
Inclusion Criteria4
- Criteria:
- Presenting for a routine eye exam
- ≥ 18 years of age
- Able and willing to give consent
Exclusion Criteria3
- History of corneal scarring
- Active infection of the eye
- Ocular surface trauma or infection
Interventions
An investigational device similar to standard GAT
Standard Goldmann Applanation Tonometry (GAT): this is the standard method for IOP measurement in clinical practice
An investigational device, prism used in standard and fixed-force GAT is attached to a portable device
This is a standard for checking eye pressure. A topical anesthetic (numbing agent). A probe will touch the front of the eye while the machine measures the eye pressure
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT07298356