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Can 3D movies on a handheld game system help straighten Kids' eyes?

NCT ID NCT04199871

Disease control Sponsor: Retina Foundation of the Southwest 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 25, 2026 · Last updated Aug 26, 2026 · Updated 1 time

Summary

This trial tests whether watching specially designed 3D movies on a Nintendo 3DS for four weeks can improve eye alignment in children with intermittent exotropia, a condition where one eye occasionally drifts outward. The study includes children with moderate misalignment and aims to see if this home-based activity could be a non-surgical way to manage the condition. It also explores whether using the movies after surgery helps maintain successful alignment.

What this could mean

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

Active substance
Dichoptic 3D movies presented on a Nintendo 3DS handheld device
What this could lead to
If effective, this could offer a non-surgical way to improve eye alignment in children with intermittent exotropia, or help maintain alignment after corrective surgery.
What could go wrong
This is an early-stage, small trial. The benefit may be modest or temporary, and not all children may respond. It is not a replacement for surgery if needed.

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 84 people

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

Started

Mar 2021

Expected to finish

Jun 2028

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

3 to 12 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: * diagnosis of IXT * IXT control assessment score at distance of 3 or 4 at baseline * Ocular misalignment by PACT \>10 pd at distance and near or PACT \>15 at distance or near Exclusion Criteria: * Amblyopia * Prior surgery * Prior binocular treatment * Coexisting ocular or systemic condition * Developmental delay

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Conditions

The condition(s) this trial relates to.

alternating exotropia intermittent squint

As listed by the trial registrant

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

Intermittent exotropia

Contacts and locations

Locations

  • Eileen E Birch

    Dallas, Texas, 75231, United States

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