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Eye study aims to map corneal thickness in common vision problems

NCT ID NCT07647146

Knowledge-focused Sponsor: Sohag 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 This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study will use a special imaging device (AS-OCT) to measure the thickness of the cornea's outer layer in 360 adults with nearsightedness, farsightedness, astigmatism, or normal vision. The goal is to see if different vision problems have unique thickness patterns. Participants must have clear corneas and no prior eye surgery.

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 help eye doctors better understand how the cornea's surface layer changes with different vision problems, potentially improving future treatments.
What could go wrong
This is an observational study, not a treatment trial. It will not directly improve vision or cure any condition. Results may not apply to all patients.

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

About 360 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

May 2027

An estimate. End dates often move.

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

Adult participants (≥18 years) with refractive errors, including myopia, hyperopia, and astigmatism, as well as emmetropic subjects, recruited from the Ophthalmology Department and undergoing anterior segment optical coherence tomography (AS-OCT) examination.

Ages

18 to 99 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: * Age ≥ 18 years- * Patients diagnosed with myopia or hyperopia by refraction * Clear cornea with no evidence of corneal pathology * Ability to undergo reliable anterior segment imaging Exclusion Criteria: * Inability to fixate or follow instructions * Family history of keratoconus * Glaucoma,Cataract * Previous ocular surgery including refractive surgery * Keratoconus or suspected corneal ectasia * Corneal opacities or scars * Contact lens wear within the last two weeks * Ocular trauma * systemic disease affecting the cornea ( Such as diabetes)

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Conditions

The condition(s) this trial relates to.

astigmatism corneal disorder hyperopia myopia refractive error

As listed by the trial registrant

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

Astigmatism Emmetropia Hyperopia Myopia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Sohag University Hospital

    Sohag, Sohag Governorate, 82524, Egypt

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