Trial to Evaluate 2 Hours of Daily Patching for Amblyopia in Children
Public ClinicalTrials.gov record NCT00091923. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized Trial to Evaluate 2 Hours of Daily Patching for Amblyopia in Children 3 to <7 Years Old
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The objectives of the Spectacle Phase are: * In previously untreated pure anisometropic patients (i.e. patients who have not used spectacles in the last year and who do not have strabismus), to determine 1. the incidence of resolution of amblyopia with spectacle correction alone and 2. the time course of visual acuity improvement with spectacle correction alone. * In all other patients, to achieve maximal improvement with spectacle correction prior to entering the randomized trial. The objectives of the Randomized Trial are: * To determine whether 5 weeks of patching treatment (2 hours of patching per day of the sound eye combined with at least one concurrent hour of near activities), compared with a control group (using spectacle correction only), improves visual acuity in patients with moderate to severe amblyopia (20/40 to 20/400). * To determine the maximal improvement and time course of improvement with this patching treatment regimen.
Study identification
- NCT ID
- NCT00091923
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 268 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 3 Years to 7 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 31, 2004
- Primary completion
- Not listed
- Completion
- Nov 30, 2005
- Last update posted
- Mar 23, 2010
2004 – 2005
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Southern California College of Optometry | Fullerton | California | 92831 | — |
| Duke University Eye Center | Durham | North Carolina | 27710 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00091923, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 23, 2010 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00091923 live on ClinicalTrials.gov.