- Conditions
- Glaucoma
- Interventions
- Spaeth/Richman Contrast Sensitivity Test, Pelli-Robson Contrast Sensitivity Chart
- Diagnostic Test
- Lead sponsor
- Wills Eye
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 314 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2010 – 2014
- U.S. locations
- 1
- States / cities
- Philadelphia, Pennsylvania
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