A Randomized Controlled Trial of Autostereoscopic 3D Vision Therapy for Amblyopia

July 12, 2026 updated by: Jinyuan,MD, Beijing Tongren Hospital

A Randomized Controlled Trial Evaluating the Efficacy and Safety of an Autostereoscopic 3D Vision Therapy System for Visual Function Rehabilitation in Children With Unilateral Amblyopia

The goal of this clinical trial is to learn if an autostereoscopic 3D amblyopia training system works to improve vision in children and adolescents with amblyopia. It will also learn about the safety and tolerability of the 3D training system. The main questions it aims to answer are:

  • Does autostereoscopic 3D vision training improve best corrected visual acuity in the amblyopic eye compared to conventional patching therapy?
  • What side effects or discomfort do participants experience during 3D training versus patching? Researchers will compare the autostereoscopic 3D training system to conventional daily eye patching to see which treatment works better for improving vision in amblyopia.

Participants will:

  • Be randomly assigned to either the 3D training group or the patching group
  • Complete daily home treatment for 6 months - either 20 minutes of 3D vision training or 2 hours of continuous eye patching
  • Visit the clinic at baseline, 1 month, 3 months, and 6 months for eye exams and vision tests
  • Have their treatment progress monitored remotely through training data logs or patching diaries

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

34

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Unilateral amblyopia (anisometropic, strabismic, or ametropic)
  • Age: 7 to 12 years
  • Amblyopic eye BCVA: 0.1 to 0.8 LogMAR
  • Fellow eye BCVA: ≥ 0.8 LogMAR
  • Stable refractive status (≤ ±0.50D change in past 6 months)
  • Written informed consent from participant and guardian

Exclusion Criteria:

  • Deprivation amblyopia (congenital cataract, ptosis, etc.)
  • Organic ocular disease (glaucoma, retinopathy, optic neuropathy)
  • Previous ocular surgery or trauma
  • Severe dry eye or other ocular surface disorders
  • Uncontrolled systemic diseases (diabetes, hypertension)
  • Neuropsychiatric conditions preventing cooperation
  • Participation in other clinical trials within 3 months

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Autostereoscopic 3D Training Group
Device: Autostereoscopic 3D Training
Daily 20-minute autostereoscopic 3D amblyopia training session, 5+ days per week for 6 months. Training consists of 15 minutes of monocular perceptual learning with Gabor patches (adaptive difficulty algorithm) and 5 minutes of binocular vergence training. Home-based training with remote data monitoring.
Active Comparator: Conventional Patching Group
Device: Conventional Patching
Daily continuous 2-hour occlusion of the non-amblyopic eye using medical adhesive eye patches, 5+ days per week for 6 months. Patients are encouraged to perform near visual activities (reading, writing, puzzles) during patching to enhance amblyopic eye stimulation. Parent-supervised home therapy with daily patching logs.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Best Corrected Visual Acuity (BCVA)
Time Frame: baseline to 6 months
baseline to 6 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Distance Stereoacuity
Time Frame: baseline to 6 months
baseline to 6 months
Near Stereoacuity
Time Frame: Baseline to 6 months
Baseline to 6 months
Contrast Sensitivity Function
Time Frame: Baseline to 6 months
Baseline to 6 months
Computer Vision Syndrome Questionnaire (CVS-Q) Score
Time Frame: Baseline to 6 months
Baseline to 6 months
Simulator Sickness Questionnaire (SSQ) Score
Time Frame: Baseline to 6 months
Baseline to 6 months
Adherence
Time Frame: Baseline to 6 months
Baseline to 6 months
Intraocular Pressure (IOP)
Time Frame: Baseline to 6 months
Baseline to 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Beijing Tongren Hospital

Investigators

  • Principal Investigator: Jin Yuan, Beijing Tongren Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

July 31, 2026

Primary Completion (Estimated)

May 31, 2027

Study Completion (Estimated)

July 31, 2027

Study Registration Dates

First Submitted

July 12, 2026

First Submitted That Met QC Criteria

July 12, 2026

First Posted (Actual)

July 17, 2026

Study Record Updates

Last Update Posted (Actual)

July 17, 2026

Last Update Submitted That Met QC Criteria

July 12, 2026

Last Verified

July 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • TREC2025-KY194

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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