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Classroom lights and phone apps aim to stop Kids' Short-Sightedness

NCT ID NCT06631339

Prevention Sponsor: National University of Singapore Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 26, 2026

Summary

This study tests two ways to prevent or slow myopia (short-sightedness) in children aged 7 to 10. One group gets special classroom lights that mimic sunlight, another group's parents get a smartphone app that encourages more outdoor time, and a third group gets standard care. Over one year, researchers will track how children's eyes change and also look at sleep and thinking skills.

What this could mean

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

Active substance
LED lighting that mimics sunlight and a smartphone app to encourage outdoor activity
What this could lead to
If successful, this could provide simple, non-invasive ways to prevent or slow down myopia in children using light exposure.
What could go wrong
This is an early-stage trial with 396 children, and the effects may be small or not work for everyone. The intervention requires daily adherence over a full school year.

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

About 396 people

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

Started

Oct 2024

Expected to finish

Jan 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.

Ages

7 to 10 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: * Subject must meet all the inclusion criteria below to participate in this study. 1. Written Informed Consent form from parent / legal guardian and assent from child subject has been obtained 2. Is between 7 to 10 years of age at start of study intervention which is 2 January 2025 or 1 January 2026 3. Studying in either Primary 2 or 3 classes of the participating school(s) in academic year 2025 or 2026. 4. Presenting visual acuity or best corrected visual acuity (BCVA) better or equal to LogMAR 0.2 (equivalent to Snellen 6/9 or better) in each eye 5. Normal Intraocular pressure (not more than 21mmHg) 6. No ocular conditions (e.g., optic nerve disease, glaucoma, retinal diseases) except for refractive error. 7. No ocular conditions affecting the accuracy of the ophthalmic examinations 8. In good general health with no significant systemic diseases that may affect eye health Exclusion Criteria: * All subjects meeting any of the exclusion criteria at baseline will be excluded from participation. 1. Previous or ongoing myopia control treatment (including but not limited to orthokeratology, atropine, pirenzepine, myopia control spectacle and contact lenses, light therapy) 2. Ongoing participation in other myopia prevention and control research trials 3. Any systemic or neurologic diseases (e.g. cancer, epilepsy, Kawasaki disease) known to affect eye health or make the participant vulnerable to the ophthalmic examinations (e.g., light flash) 4. Any other conditions precluding adherence to the protocol including unwillingness to refrain from myopia control treatment for the duration of the study

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Conditions

The condition(s) this trial relates to.

refractive error myopia prevention target

As listed by the trial registrant

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

Light; therapy, complications Myopia Myopia progression Myopia: refractive error Short-sighted

How to take part

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

  1. The places running it

    5 sites. 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

  • Bedok Green Primary School

    RECRUITING

    Singapore, 469317, Singapore

  • Marymount Convent School

    RECRUITING

    Singapore, 297754, Singapore

  • National University of Singapore, Yong Loo Lin School of Medicine, Department of Ophthalmology, Eye N Brain Research Lab

    RECRUITING

    Singapore, 119276, Singapore

  • Wellington Primary School

    RECRUITING

    Singapore, 757702, Singapore

  • Westwood Primary School

    RECRUITING

    Singapore, 649188, Singapore

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