Actively Recruiting
North American Comfilcon A Clinical Study
Led by CooperVision International Limited (CVIL) · Updated on 2025-08-27
182
Participants Needed
4
Research Sites
N/A
Total Duration
On this page
Sponsors
C
CooperVision International Limited (CVIL)
Lead Sponsor
C
Centre for Ocular Research & Education, Canada
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating the safety and effectiveness of various Comfilcon A contact lenses, including Sphere, Toric, Multifocal, Toric Multifocal, and Energys lenses, when worn by a general population. The study focuses on visual performance and any contact lens-related adverse events after 2 hours of wear. The trial is conducted by CooperVision International Limited (CVIL) and includes participants aged 8 to 75 years who have experience wearing these lenses. Participants are habitual wearers of Comfilcon A lenses, divided into groups based on the specific lens type they use: Sphere, Toric, Multifocal, Multifocal Toric, and Energys. Each participant will wear their respective lens type for 2 hours during the study. The study observes lens performance and safety during this wear time. During the study, participants will have their visual acuity assessed after 2 hours of lens wear. Researchers will monitor any adverse events related to the contact lenses during this period. The total participation duration is centered around this 2-hour wear and evaluation period, focusing on collecting data about lens safety and visual performance in real-world use.
CONDITIONS
Brief Title
North American Comfilcon A Clinical Study
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age 8 to 75 years (inclusive)
- Current wearer of the Comfilcon A sphere, toric, multifocal, toric multifocal, or Energys contact lens for at least 12 months
- At least occasional overnight wear of these lenses in the last 12 months
You will not qualify if you...
- Current participation in a contact lens or contact lens care product clinical trial
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - 2 hours
Participants wear their habitual comfilcon A lenses (Sphere, Toric, Multifocal, Toric Multifocal, or Energys) for 2 hours to assess lens performance and safety.
1 visit (in-person)
Trial Site Locations
Total: 4 locations
1
University of Berkeley
Berkeley, California, United States, 94720
Actively Recruiting
2
ProCare Vision Center
Granville, Ohio, United States, 43023
Actively Recruiting
3
Nittany Eye Associates
College, Pennsylvania, United States, 16801
Actively Recruiting
4
Drs. McIntyre, Garza, Avila and Jurica, Optometrists
Corpus Christi, Texas, United States, 78411
Actively Recruiting
Research Team
J
Jose A Vega, OD,MSc,PhD
J
Jill Woods, MSc,MCOptom
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
5
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