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Glasses that fight nearsightedness: a new hope for kids?

NCT ID NCT05689567

Prevention Sponsor: Children's Hospital of Fudan 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether special 'peripheral focus-out' glasses can prevent nearsightedness (myopia) in Chinese children aged 6 to 8. Over two years, 160 children will wear the glasses at least 8 hours a day. Researchers will measure changes in their vision to see if the glasses help keep eyes healthy.

What this could mean

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

Active substance
Peripheral focus-out glasses (DEFOG glasses)
What this could lead to
If successful, these glasses could help prevent nearsightedness in young children, reducing the need for stronger prescriptions later.
What could go wrong
This is a small, early-stage trial with 160 children. The glasses may not prevent myopia, and long-term effects are unknown.

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

160 people

The number who actually took part.

Started

Mar 2023

Expected to finish

Mar 2026

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.

Ages

6 to 8 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: 1. Age: ≥6 and ≤8 years at enrollment. 2. At least one parent' s Spherical equivalent refraction≤-3.00D. 3. Spherical equivalent refractions (SERs) under cycloplegia: +0.50 to +1.50 diopters (D) 4. Astigmatism ≤1.00 D . 5. Anisometropia ≤1.00 D. 6. Best Corrected Visual Acuity (BCVA) : 1.0 or better 7. Provision of consent written by subject's legal guardian 8. Willing and able to participate in all required activities of the study Exclusion Criteria: 1. Any of the following abnormalities on the ocular surface, such as trachoma, pemphigoid, chemical injury, heat burn, radiation injury, etc. 2. Eyelid abnormalities (e.g. entropion, ectropion, tumor, edema, blepharospasm, incomplete eyelid closure, severe trichiasis, severe ptosis) ,which affect eyelid function in either eye 3. Eye diseases such as strabismus, amblyopia, anisometropia, fundus diseases, and accommodation abnormality，etc. 4. Prior treatment of myopia control in either eye, including but not limited to drugs, orthokeratology, low-level red-light therapy, etc. 5. Noncompliance with measurement at enrollment.

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Conditions

The condition(s) this trial relates to.

hyperopia myopia prevention target

As listed by the trial registrant

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

Emmetropization Hyperopia Myopia

Contacts and locations

Locations

  • Children's Hospital of Fudan University

    Shanghai, Shanghai Municipality, 201110, China

More trials for these conditions

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