Study Results
Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.
View full resultsBasic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
TERMINATED
NA
42 participants
INTERVENTIONAL
2018-12-16
2019-03-06
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Presbyopic Wear Experience With Multifocal Lenses Compared to Single Vision Lenses and Reading Glasses
NCT07218731
Proclear 1-D Multifocal Nondispensing Study
NCT01526902
Multifocal High ADD Contact Lens Proof of Concept Trial
NCT02117544
Evaluation of Soft Multifocal Lenses in Presbyopic Previous Contact Lens Wearers
NCT06053463
A Comparison of Visual Function After Bilateral Implantation of Presbyopia-correcting Intraocular Lenses (IOLs)
NCT01166971
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
Multifocal Contact Lenses
Multifocal soft contact lenses according to the subject's prescription and fitted using the Alcon multifocal fitting guide. Lenses were worn bilaterally (in both eyes) for up to 3 hours, 1 day only.
Multifocal soft contact lenses
Commercially available contact lenses
PAL Spectacles
Progressive addition lens spectacles according to the subject's habitual prescription, with testing up to 3 hours, 1 day only.
Progressive addition lens spectacles
Per subject's habitual prescription
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Multifocal soft contact lenses
Commercially available contact lenses
Progressive addition lens spectacles
Per subject's habitual prescription
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* Habitual correction of either any multifocal contact lens with a maximum add of +2.00 Diopter (D), or progressive addition lens spectacles with a maximum add of +2.00 D;
* Wears habitual correction at least 5 days per week and at least 6 hours per day.
Exclusion Criteria
* Subjects fit with only one contact lens;
* Known pregnancy or lactating;
* History of or planned refractive surgery or irregular cornea in either eye.
38 Years
58 Years
ALL
No
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Alcon Research
INDUSTRY
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Senior Clinical Manager, CDMA
Role: STUDY_DIRECTOR
Alcon Research, LLC
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Alcon Investigative Site
Houston, Texas, United States
Alcon Investigative Site
Birmingham, , United Kingdom
Countries
Review the countries where the study has at least one active or historical site.
Provided Documents
Download supplemental materials such as informed consent forms, study protocols, or participant manuals.
Document Type: Study Protocol
Document Type: Statistical Analysis Plan
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
CLT792-P001
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.