Building a Database of Results From People Without Eye Problems
Public ClinicalTrials.gov record NCT02627339. 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 Prospective Study of Controls to Build a Normative Database for the Spaeth/Richman Contrast Sensitivity Test (SPARCS)
Study identification
- NCT ID
- NCT02627339
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Lead sponsor
- Wills Eye
- Other
- Enrollment
- 208 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 10 Years to 90 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 31, 2012
- Primary completion
- Jul 31, 2015
- Completion
- Jul 31, 2015
- Last update posted
- Nov 20, 2016
2012 – 2015
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Wills Eye Glaucoma Service | Philadelphia | Pennsylvania | 19107 | — |
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 NCT02627339, 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 Nov 20, 2016 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02627339 live on ClinicalTrials.gov.