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3D movies may boost depth perception in kids with lazy eye

NCT ID NCT07301645

Symptom relief Sponsor: Universitat Politècnica de Catalunya Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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)
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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This status has not been confirmed recently, so it may be out of date.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 watching 3D movies can improve depth perception and vision in children aged 4 to 12 who still have some vision loss from lazy eye (amblyopia) despite prior treatment. Forty children will be randomly assigned to watch three movies in either 3D or 2D, then all will watch three more in 3D. The goal is to see if 3D viewing offers extra benefits for depth vision and eye alignment.

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 40 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Jul 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

4 to 14 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Children aged 4 to 12 years. * Previous diagnosis of unilateral amblyopia (anisometropic, strabismic, or mixed). * History of conventional treatment (optical correction, occlusion and/or penalization) with stable visual acuity for at least 6 months. * Interocular visual acuity difference ≥ 0.2 logMAR (≈ ≥2 Snellen lines). * Ability to understand and follow age-appropriate basic instructions. * Parent/guardian consent (and child assent when applicable) Exclusion Criteria: * Ocular surgery within the last 6 months. * Manifest strabismus \>15 prism diopters. * Concomitant ocular pathology that may affect vision (e.g., cataract, nystagmus, ptosis, corneal opacity, retinal disease, optic neuropathy). * Cognitive or neurological deficits preventing compliance with the protocol. * Prior intensive exposure to 3D cinema or VR/3D videogames that could act as a confounder. * Family or child refusal to participate

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Conditions

The condition(s) this trial relates to.

amblyopia strabismus

As listed by the trial registrant

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

Amblyopia Strabismus

How to take part

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  1. 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 ↗

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