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Automated Applanation Tonometry - Updated
Who can join
Ages 18 and older · All sexes
Full eligibility criteria
Criteria: Inclusion Criteria: * Presenting for a routine eye exam * ≥ 18 years of age * Able and willing to give consent Exclusion Criteria: * History of corneal scarring * Active infection of the eye * Ocular surface trauma or infection
About the study
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.
What is being tested
- Standard GAT (device)
- Fixed force GAT (device)
- Upright applanating prototype (device)
- Pneumotonometer (device)
Sponsor: Duke University · Participants: 200 · Started: Mar 2, 2026
Contact the study team
- Sarah Jones · Phone: 919 681 6584
Official record on ClinicalTrials.gov — NCT07298356
Locations in the U.S.
| North Carolina | Duke Eye Center, Durham |
Conditions
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.