Video Treatment for Amblyopia

NCT ID: NCT05439200

Last Updated: 2026-01-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-08-23

Study Completion Date

2027-06-30

Brief Summary

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The purpose of this study is to determine whether viewing asynchronous movies leads to better visual outcomes in young children with amblyopia than standard-of-care occlusion therapy with an adhesive patch and whether this is associated with better adherence to treatment.

Detailed Description

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This is a single-site randomized clinical trial to compare treatment of amblyopia by viewing asynchronous movies to standard-of-care occlusion therapy with an adhesive patch. Participants will be referred from local pediatric ophthalmologists. Following informed consent, children will complete baseline testing to confirm eligibility and provide pre-treatment measurements of visual acuity, suppression, stereoacuity, motor skills, self-perception, and quality of life. Eligible children will then be randomly allocated to either patch-free occlusion therapy or standard-of-care occlusion therapy with an adhesive patch.

Children will participate in their assigned occlusion therapy at home for 6 weeks (primary outcome). Adherence will be objectively monitored. Vision will be re-assessed at 2 and 4 weeks and all tests will be repeated at 6 weeks. The asynchronous movie group will have an option to continue for and additional 2 or 4 weeks (10 weeks total). The standard-of-care occlusion group will be offered the opportunity to use the movie treatment at the 6 week visit through 10 weeks. Children who choose to remain in the study beyond the 6 week primary outcome visit will have vision reassessed at 8 and 10 weeks.

The primary analysis will be a comparison of improvement in amblyopic eye visual acuity (baseline-6 weeks) between the movie group and the standard-of-care patching group. Secondary analyses will include comparisons of adherence to each treatment, comparison of the proportion of children in each group with visual acuity ≤0.1 logMAR (recovered) at 6 weeks and 95% CIs, comparisons of changes in extent of suppression, depth of suppression, stereoacuity, motor skills standard scores, self-perception scores, and PedEyeQ domain scores. Associations among hours of treatment, changes in visual acuity, suppression, and stereoacuity, will be explored and modeled for dose-response relationships. In exploratory analyses, we will examine whether there are additional improvements in visual acuity, suppression, or stereoacuity between 6 and 10 weeks for the movie group (8 and 10 weeks means and 95% CIs).

Conditions

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Amblyopia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Asynchronous movies

Asynchronous 3D movies

Group Type EXPERIMENTAL

Asynchronous 3D movies

Intervention Type DEVICE

3D movies streamed at home for viewing on a handheld lenticular 3D screen

Standard-of-care patching with an adhesive patch

Standard-of-care patching with an adhesive patch

Group Type ACTIVE_COMPARATOR

Patching

Intervention Type DEVICE

Adhesive patch to cover the fellow eye

Interventions

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Asynchronous 3D movies

3D movies streamed at home for viewing on a handheld lenticular 3D screen

Intervention Type DEVICE

Patching

Adhesive patch to cover the fellow eye

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* aged 3-7 years
* male and female
* strabismic, anisometropic, or combined mechanism amblyopia (visual acuity 0.3-0.8 logMAR)
* interocular visual acuity difference ≥0.3 logMAR
* wearing glasses (if needed) for a minimum of 8 weeks with no change in visual acuity at 2 visits ≥4 weeks apart
* child's ophthalmologist and family willing to forgo standard patching treatment during the study

Exclusion Criteria

* prematurity ≥8 wk
* coexisting ocular or systemic disease
* developmental delay
* strabismus \>5 pd
* myopia \> -3.00D
Minimum Eligible Age

3 Years

Maximum Eligible Age

7 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Eye Institute (NEI)

NIH

Sponsor Role collaborator

Retina Foundation of the Southwest

OTHER

Sponsor Role lead

Responsible Party

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Eileen Birch

Senior Research Scientist

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Retina Foundation

Dallas, Texas, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Eileen E Birch, PhD

Role: CONTACT

2143633911 ext. 113

Reed M Jost, MS

Role: CONTACT

2143633911 ext. 113

Facility Contacts

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Reed M Jost, MS

Role: primary

214-363-3911 ext. 113

Role: backup

Other Identifiers

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R01EY022313

Identifier Type: NIH

Identifier Source: secondary_id

View Link

RFSW113B

Identifier Type: -

Identifier Source: org_study_id

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