Randomized Clinical Trial of Bifocal Lenses Versus Computer-specific Progressive Addition Lenses
Public ClinicalTrials.gov record NCT00585026. 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
Randomized Clinical Trial of Bifocal Lenses Versus Computer-specific Progressive Addition Lenses on Symptoms and Performance on a Computer
Study identification
- NCT ID
- NCT00585026
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- University of Alabama at Birmingham
- Other
- Enrollment
- 40 participants
Conditions and interventions
Conditions
Interventions
- D-28 bifocal lenses and frame Device
- Progressive addition computer lenses and frame Device
Device
Eligibility (public fields only)
- Age range
- 40 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
- Sep 30, 2006
- Primary completion
- Not listed
- Completion
- May 31, 2007
- Last update posted
- Jun 14, 2011
2006 – 2007
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| School of Optometry | Birmingham | Alabama | 35294-0010 | — |
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 NCT00585026, 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 Jun 14, 2011 · Synced Jul 21, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00585026 live on ClinicalTrials.gov.