"Night Vision and Carotenoids"
Public ClinicalTrials.gov record NCT04741763. 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
"Night Vision and Carotenoids" A 2 Center Study of the Physiological Function of the Eyes
Study identification
- NCT ID
- NCT04741763
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Robert Davis
- Other
- Enrollment
- 27 participants
Conditions and interventions
Conditions
Interventions
- EyePromise Visual Edge Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 50 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Feb 12, 2018
- Primary completion
- Aug 19, 2019
- Completion
- Aug 19, 2020
- Last update posted
- Feb 4, 2021
2018 – 2020
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| The Captain James A. Lovell Federal Health Care Center (FHCC) | North Chicago | Illinois | 60064 | — |
| Davis EyeCare | Oak Lawn | Illinois | 60453 | — |
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 NCT04741763, 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 Feb 4, 2021 · Synced Jun 27, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04741763 live on ClinicalTrials.gov.