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Automated Applanation Tonometry

NCT05235321 · Status: TERMINATED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 111

Last updated 2025-06-13

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. The purpose of this study is to develop an automated and objective method for performing applanation tonometry using standard ophthalmic equipment as well as using 2 portable prototypes.

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

Supine Applanating Prototype

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

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
2022-11-21
Primary Completion
2024-05-31
Completion
2024-05-31
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 NCT05235321 on ClinicalTrials.gov