IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. 
Anisometropia Amblyopia Improved by Perceptual Learning and Patching
This study has been completed.
Sponsor:
Tri-Service General Hospital
Information provided by:
Tri-Service General Hospital
ClinicalTrials.gov Identifier:
NCT00498641
First received: July 9, 2007
Last updated: NA
Last verified: July 2007
History: No changes posted
- Full Text View
- Tabular View
- No Study Results Posted
- Disclaimer
- How to Read a Study Record
Purpose
To compare the effects of perceptual learning with patching on improving visual acuity and contrast sensitivity in payient with anisometropic amblyopia.
| Condition | Intervention | Phase |
|---|---|---|
| Anisometropic Amblypia | Procedure: computer program and patching | Phase 3 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Intervention Model: Parallel Assignment Masking: Single Blind Primary Purpose: Treatment |
Resource links provided by NLM:
Further study details as provided by Tri-Service General Hospital:
Primary Outcome Measures:
- Corrected amblyopic logMAR visual acuity and contrast sensitivity function
| Study Start Date: | January 2005 |
| Study Completion Date: | January 2007 |
Patients with anisometropic amblyopia were randomized to patching or perceptual learning group. Corrected amblyopic logMAR visual acuity and contrast sensitivity function were measured at four-weekly intervals until visual acuity stabilized or amblyopia resolved. Improvement in visual acuity, contrast sensitivity, and the resolution of amblyopia were compared between groups.
Eligibility| Ages Eligible for Study: | 3 Years to 55 Years (Child, Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | Yes |
Criteria
Inclusion Criteria:
- Anisometropia without strabismus
- An interocular acuity difference of at least 0.2 logMAR in children (3–7 years of age) or in older children and adult patients without a history of patching or atropine penalization
- All patients wore their spectacle at least one year
Exclusion Criteria:
- A history of prior spectacle correction
- A history of patching or optical penalization
- The existence of an ocular disease that could contribute to decreased visual acuity
- Learning difficulties
- The presence of strabismus
Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00498641
Please refer to this study by its ClinicalTrials.gov identifier: NCT00498641
Sponsors and Collaborators
Tri-Service General Hospital
Investigators
| Study Director: | Po Chen, MD | Tri-Service General Hospital |
More Information
| ClinicalTrials.gov Identifier: | NCT00498641 History of Changes |
| Other Study ID Numbers: |
094-05-0112 |
| Study First Received: | July 9, 2007 |
| Last Updated: | July 9, 2007 |
Keywords provided by Tri-Service General Hospital:
|
perceptual learning occlusion therapy |
ClinicalTrials.gov processed this record on July 21, 2017