Assessing Fitting Guides in Alcon Multifocal Contact Lenses
Public ClinicalTrials.gov record NCT03118934. 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.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this study is to compare an alternative fitting guide to a current fitting guide for optimizing contact lens parameters and determining contact lens prescription.
Study identification
- NCT ID
- NCT03118934
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 188 participants
Conditions and interventions
Conditions
Interventions
- Lotrafilcon B multifocal contact lenses Device
- Nelfilcon A multifocal contact lenses Device
- Delefilcon A multifocal contact lenses Device
Device
Eligibility (public fields only)
- Age range
- 40 Years to 65 Years
- 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
- May 16, 2017
- Primary completion
- Jul 6, 2017
- Completion
- Jul 27, 2017
- Last update posted
- Sep 25, 2018
2017
United States locations
- U.S. sites
- 14
- U.S. states
- 10
- U.S. cities
- 13
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Alcon Investigative Site | Phoenix | Arizona | 85032 | — |
| Alcon Investigative Site | San Diego | California | 92123 | — |
| Alcon Investigative Site | Pensacola | Florida | 32503 | — |
| Alcon Investigative Site | Tallahassee | Florida | 32308 | — |
| Alcon Investigative Site | Pittsburg | Kansas | 66762 | — |
| Alcon Investigative Site | Shawnee Mission | Kansas | 66204 | — |
| Alcon Investigative Site | Ann Arbor | Michigan | 48105 | — |
| Alcon Investigative Site | Eden Prairie | Minnesota | 55344 | — |
| Alcon Investigative Site | Medina | Minnesota | 55340 | — |
| Alcon Investigative Site | Raytown | Missouri | 64133 | — |
| Alcon Investigative Site | Powell | Ohio | 43065 | — |
| Alcon Investigative Site | Warwick | Rhode Island | 02888 | — |
| Alcon Investigative Site | Memphis | Tennessee | 38104 | — |
| Alcon Investigative Site | Memphis | Tennessee | 38119 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 6 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03118934, 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 Sep 25, 2018 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03118934 live on ClinicalTrials.gov.