- Conditions
- Concussion, Mild, Convergence Insufficiency, Accommodation; Insufficiency
- Interventions
- Glasses
- Device
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 9 Years to 17 Years
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017 – 2021
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
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Showing 1–5
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- Conditions
- Refractive Error, Presbyopia, Asthenopia, Eyeglasses
- Interventions
- D-28 bifocal lenses and frame, Progressive addition computer lenses and frame
- Device
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Eligibility
- 40 Years and older
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2007
- U.S. locations
- 1
- States / cities
- Birmingham, Alabama
- Conditions
- Presbyopia
- Interventions
- Multifocal soft contact lenses, Progressive addition lens spectacles
- Device · Other
- Lead sponsor
- Alcon Research
- Industry
- Eligibility
- 38 Years to 58 Years
- Enrollment
- 42 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Houston, Texas
- Conditions
- Presbyopia
- Interventions
- Standard, non-free-form, non-customized PAL spectacles, Individually customized free-form surfaced PAL spectacles
- Device
- Lead sponsor
- University of California, Berkeley
- Other
- Eligibility
- 39 Years to 80 Years
- Enrollment
- 95 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009
- U.S. locations
- 1
- States / cities
- Berkeley, California
- Conditions
- Myopia
- Interventions
- progressive addition spectacle lens (bifocal), Single Vision Lenses (SVLs)
- Device
- Lead sponsor
- Ohio State University
- Other
- Eligibility
- 6 Years to 11 Years
- Enrollment
- 85 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2006 – 2010
- U.S. locations
- 1
- States / cities
- Columbus, Ohio