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Blow by blow: new study links breathing force to eye pressure

NCT ID NCT07274176

Knowledge-focused Sponsor: Uşak 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 This study
The trial has finished. Results may not be published yet.
Stopped early
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jul 21, 2026 · Updated 2 times

Summary

This study looks at how different levels of forced breathing change pressure inside the eye. Researchers will use a special device called Airofit to measure this in 60 healthy adults. The goal is to better understand the link between breathing effort and eye pressure, which could help in future eye health research.

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

60 people

The number who actually took part.

Started

Dec 2025

Finished

Mar 2026

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 to 65 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Aged 18 years or older. * Willing and able to provide informed consent. * Have a best-corrected visual acuity of 6/12 or better. * Able to understand and follow instructions for using the Airofit device. * Have an optic nerve cup/disc ratio not exceeding 0.5, and have a c/d difference between both eyes not exceeding 0.2. * Did not have taken any anticholinergic medication, systemic beta-blockers, or corticosteroids within the last 3 months that could affect intraocular pressure levels. Exclusion Criteria: * a history of intraocular surgery, * a history of uveitis, * a spherical refractive error exceeding 3D, * a history of regular topical treatment other than artificial tears

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Conditions

The condition(s) this trial relates to.

ocular hypertension

As listed by the trial registrant

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

Intraocular pressure

Contacts and locations

Locations

  • University of Usak

    Uşak, 64200, Turkey (Türkiye)

More trials for these conditions

Other studies related to the condition(s) this trial covers.