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Portable devices could take the guesswork out of eye pressure checks

NCT ID NCT05235321

Diagnosis Sponsor: Duke University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early This study
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 11, 2026 · Last updated Sep 11, 2026

Summary

Eye pressure is usually measured with a technique called Goldmann applanation tonometry, which doctors consider the gold standard but which depends on the examiner's skill and offers limited repeatability. Researchers at Duke University are testing automated versions of this measurement, including a fixed-force device and two portable prototypes that work with the patient sitting up or lying down. Adults arriving for routine eye exams may join, and the team compares the pressure readings from each device against the standard method.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
automated applanation tonometry devices, including fixed-force and portable prototypes
What this could lead to
If the devices work, eye pressure checks could become more consistent and easier to perform outside a specialist clinic, which may help detect glaucoma earlier.
What could go wrong
The prototypes may not match the accuracy of standard tonometry, and this early study only compares measurements in adults at routine eye exams. It does not show whether automated tonometry improves glaucoma outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

118 people

The number who actually took part.

Started

Nov 2022

Finished

May 2024

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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

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Conditions

The condition(s) this trial relates to.

glaucoma ocular hypertension

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Glaucoma Glaucoma, suspect

Contacts and locations

Locations

  • Duke Eye Center

    Durham, North Carolina, 27710, United States

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