Clinical Study to Evaluate Effectiveness of Digital Refraction
Public ClinicalTrials.gov record NCT03502863. 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 Clinical Study to Evaluate the Effectiveness of Digital Refraction
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Prospective, comparative, randomized, non-masked clinical study to compare the a digital refraction with LogMAR VA testing utilizing trial lenses, to standard manual refraction using a Phoropter, and LogMAR VA testing, in accuracy of visual acuity measurement.
Study identification
- NCT ID
- NCT03502863
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 102 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 22 Years to 55 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
- Apr 18, 2018
- Primary completion
- Jul 5, 2018
- Completion
- Jul 5, 2018
- Last update posted
- Oct 25, 2018
2018
United States locations
- U.S. sites
- 3
- U.S. states
- 3
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Site 03 | Fort Lauderdale | Florida | 33324 | — |
| Site 02 | Nashville | Tennessee | 37215 | — |
| Site 01 | Harlingen | Texas | 78550 | — |
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 NCT03502863, 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 Oct 25, 2018 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03502863 live on ClinicalTrials.gov.