Correction of Myopia Evaluation Trial 2
Completed · Phase 3
Conditions studied: Myopia
In brief
The purpose of the study is to determine if progressive addition lenses (PALs) versus single vision lenses (SVLs) slow the progression of low myopia in children with poor accommodative responses (i.e., large accommodative lags) and near esophoria.
Key facts
- Study ID
- NCT00320593
- Run by
- Jaeb Center for Health Research
- People needed
- 118
- Starts
- 2005-04-01
- Expected to finish
- 2010-03-01
- Last updated by the study team
- 2026-07-09
Who can join
Age: 8 and older, up to 11. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Refractive error determined by cycloplegic autorefraction which meets all of the following:
- Spherical equivalent: -0.50 to -3.00 D in both eyes
- Astigmatism <= 1.5 D in both eyes
- Anisometropia <= 1.00 D difference between eyes in spherical equivalent
- Visual acuity is at least 20/20 with best subjective refraction in both eyes
- Accommodative response at near (33 cm) is less than 2.0D by non-cycloplegic autorefraction
- Near esophoria (>= 2.0 PD) present by alternate prism and cover test (APCT) at near using best refractive correction determined from non-cycloplegic subjective refraction
You may not qualify if…
- Strabismus present by cover-uncover test at far, near, and/or near with +2.00D over best subjective refraction
- Current or prior use of PALs, bifocals, or contact lenses in either eye (prior or current use of SVLs is allowed)
Where it is running
- University of Alabama- Birmingham, School of Optometry — Birmingham, Alabama, United States
- Southern California College of Optometry — Fullerton, California, United States
- Indiana School of Optometry — Bloomington, Indiana, United States
- New England College of Optometry — Boston, Massachusetts, United States
- Ohio State University College of Optometry — Columbus, Ohio, United States
- Family Eye Group — Lancaster, Pennsylvania, United States
- Pennsylvania College of Optometry — Philadelphia, Pennsylvania, United States
- University of Houston College of Optometry — Houston, Texas, United States
Full record on ClinicalTrials.gov
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