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Eye scans may spot early damage from sleep apnea

NCT ID NCT03979001

Knowledge-focused Sponsor: Centre Hospitalier Universitaire Dijon Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed pilot study looked at whether a quick, non-invasive eye scan (OCT angiography) can detect early blood vessel changes in the retina of people with obstructive sleep apnea. Researchers compared 166 adults with and without sleep apnea. The goal was to see if retinal imaging could reveal microvascular damage linked to sleep apnea, which might help assess cardiovascular risk in the future.

What this could mean

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

What this could lead to
If successful, this could show that eye scans help detect early blood vessel damage from sleep apnea, potentially guiding future cardiovascular risk screening.
What could go wrong
This is a small, early pilot study with no treatment tested. Results may not lead to a practical screening tool, and findings need confirmation in larger trials.

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.

Participants

166 people

The number who actually took part.

Started

Jan 2020

Finished

Aug 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.

Who is studied

Patients seen for sleep apnea screening by a pulmonologist and referred for polysomnography diagnosis of obstructive sleep apnea syndrome

Ages

18 years and older

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: * person who has given oral consent * person who can be followed throughout the study * adult Patient group: \- Patient seen in sleep apnea screening consultation by a pulmonologist and referred for polysomnography diagnosis of OSA Control Group: \- Person initially without obstructive sleep apnea syndrome Exclusion Criteria: * a person who is not affiliated to or not a beneficiary of the national health insurance system * person subject to a measure of legal protection (curatorship, guardianship) * person subject to a safeguard of justice * pregnant, parturient or breastfeeding woman * adult incapable or unable to consent * person with a contraindication to Tropicamide or Neosynephrine * person with a history of eye disease affecting ocular circulation (examples: acute anterior ischemic optic neuropathy, retinal central artery occlusion, retinal central vein occlusion, diabetic retinopathy, glaucoma, uncontrolled hypertonia, AMD, severe myopia...) Control Group: * person with a history of chronic lung problems (e.g. COPD, chronic respiratory failure, etc.) * person with at least one of the following risk factors for obstructive sleep apnea syndrome: * Obesity with IMC≥30 * Alcohol consumption \> 3 glasses per day Exclusion criteria: positive result in one of the 3 self-questionnaires

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Conditions

The condition(s) this trial relates to.

obstructive sleep apnea syndrome

As listed by the trial registrant

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

Obstructive sleep apnea syndrome

Contacts and locations

Locations

  • Chu Dijon Bourogne

    Dijon, 21000, France

More trials for these conditions

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