Comparing Biofinity Toric Multifocal to Ultra Multifocal for Astigmatism
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
Alberta
-
Edmonton, Alberta, Canada, T5N1S5
- Glasses Half Full
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-
Manitoba
-
Winnipeg, Manitoba, Canada, R2C 3B4
- Oakley Eyecare
-
-
Ontario
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New Hamburg, Ontario, Canada, N3A 1K2
- Dolman Eyecare Centre
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Toronto, Ontario, Canada, M5V 2K8
- Spadina Optometry
-
-
Ontorio
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Waterloo, Ontorio, Canada, N2L 3G1
- Lyndon Jones
-
-
-
-
Ohio
-
Athens, Ohio, United States, 45701
- Athens Eye Care
-
-
Pennsylvania
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State College, Pennsylvania, United States, 16801
- Nittany Eye Associates
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Is at least 42 years of age and has full legal capacity to volunteer;
- Has read and signed an information consent letter;
- Self reports having a full eye examination in the previous two years;
- Anticipates being able to wear the study lenses for at least 8 hours a day, 5 days a week;
- Is willing and able to follow instructions and maintain the appointment schedule;
- Habitually wears soft contact lens for the past 3 months minimum;
- Has refractive astigmatism of at least -0.75DC;
- Is presbyopic and requires a reading addition of at least +0.75D;
- Can be fit and achieve binocular distance vision of at least 20/30 Snellen (or +0.20 logMAR) which participants also deem to be 'acceptable', with the available study lens parameters (sphere +4 to -6; cylinder -0.75 to -1.75DC; near addition +0.75 to +2.50).
Exclusion Criteria:
- Is participating in any concurrent clinical or research study;
- Habitually wears one of the study contact lenses;
- Has any known active* ocular disease and/or infection;
- Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
- Is using any systemic or topical medications that in the opinion of the investigator may affect contact lens wear or a study outcome variable;
- Has known sensitivity to the diagnostic sodium fluorescein and/or the care product Opti-Free PureMoist being used in the study;
- Self-reports as pregnant, lactating or planning a pregnancy at the time of enrolment;
- Has undergone refractive error surgery. * For the purposes of this study, active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Mild (i.e. not considered clinically relevant) lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and dry eye are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: comfilcon A then samfilcon A
Subjects were randomized to wear comfilcon A for one month then Samfilcon A for one month in this randomized, bilateral cross-over study.
|
Subjects will be randomized to wear comfilcon A for one month.
Other Names:
Subjects will be randomized to wear samfilcon A for one month.
Other Names:
|
|
Active Comparator: samfilcon A then comfilcon A
Subjects were randomized to wear samfilcon A for one month then comfilcon A for one month in this randomized, bilateral cross-over study.
|
Subjects will be randomized to wear comfilcon A for one month.
Other Names:
Subjects will be randomized to wear samfilcon A for one month.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Ease of Lens Handling at Insertion
Time Frame: Day 28
|
Subjective at-home ratings for ease of lens handling for insertion, using a 0-10 scale (0-Very difficult, 10 - Very easy).
|
Day 28
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Fiona Soong, Eyes on Sheppard Clinic
- Principal Investigator: Adam Keech, Oakley Eyecare
- Principal Investigator: Howard Dolman, Dolman Eyecare Centre
- Principal Investigator: Kristin Heeney, Spadina Optometry
- Principal Investigator: Michael Kreuzer, Glasses Half Full
- Principal Investigator: Shane Foster, Athens Eye Care
- Principal Investigator: Michael Cymbor, Nittany Eye Associates
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- EX-MKTG-110
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.