Spaeth/Richman Contrast Sensitivity Test
Public ClinicalTrials.gov record NCT01300949. 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
Validation and Reproducibility of Spaeth/Richman Contrast Sensitivity Test
Study identification
- NCT ID
- NCT01300949
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Wills Eye
- Other
- Enrollment
- 314 participants
Conditions and interventions
Conditions
Interventions
- Pelli-Robson Contrast Sensitivity Chart Diagnostic Test
- Spaeth/Richman Contrast Sensitivity Test Diagnostic Test
Diagnostic Test
Eligibility (public fields only)
- Age range
- 18 Years and older
- 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
- Dec 31, 2009
- Primary completion
- Mar 31, 2014
- Completion
- Mar 31, 2014
- Last update posted
- Dec 10, 2018
2010 – 2014
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Wills Eye Institute | 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 NCT01300949, 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 Dec 10, 2018 · Synced May 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01300949 live on ClinicalTrials.gov.