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Automated Applanation Tonometry - Updated

NCT07298356 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 200

Last updated 2026-03-06

No results posted yet for this study

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.

Conditions

Interventions

DEVICE

Standard GAT

Standard Goldmann Applanation Tonometry (GAT): this is the standard method for IOP measurement in clinical practice

DEVICE

Fixed force GAT

An investigational device similar to standard GAT

DEVICE

Upright applanating prototype

An investigational device, prism used in standard and fixed-force GAT is attached to a portable device

DEVICE

Pneumotonometer

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

Sponsors & Collaborators

Principal Investigators

  • Joanne Wen, MD · Duke Eye Center

Study Design

Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-02
Primary Completion
2026-12-29
Completion
2026-12-29
FDA Device
Yes

Countries

  • United States

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07298356 on ClinicalTrials.gov