Clinical Validation of Biofinity Toric MTO (Made To Order) Lenses
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
-
-
Indiana
-
Bloomington, Indiana, United States, 47405
- CORL, Indiana University
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Has had a self-reported oculo-visual examination in the last two years.
- Is at least 18 years of age and has full legal capacity to volunteer.
- Has read and understood the information consent letter.
- Is willing and able to follow instructions and maintain the appointment schedule.
- Is correctable to a visual acuity of 20/40 or better (in each eye) with their habitual vision correction or 20/20 best-corrected.
- Currently wears soft contact lenses.
- Has clear corneas and no active ocular disease.
- Has not worn lenses for at least 12 hours before the examination
Exclusion Criteria:
- Has never worn contact lenses before.
- Has any systemic disease affecting ocular health.
- Is using any systemic or topical medications that will affect ocular health.
- Has any ocular pathology or severe insufficiency of lacrimal secretion (moderate to severe dry eyes) that would affect the wearing of contact lenses.
- Has persistent, clinically significant corneal or conjunctival staining using sodium fluorescein dye.
- Has any clinically significant lid or conjunctival abnormalities, active neovascularization or any central corneal scars.
- Is aphakic.
- Has undergone corneal refractive surgery.
- Is participating in any other type of eye related clinical or research study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: comfilcon A MTO
Subjects will be randomized to receive either the Test or Control lens as a matched pair at each visit per a predetermined randomization schedule.
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Randomized to a test lens in one eye and control lens in the other as a matched pair.
Other Names:
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Active Comparator: comfilcon A
Subjects will be randomized to receive either the Test or Control lens as a matched pair at each visit per a predetermined randomization schedule.
|
Randomized to a test lens in one eye and control lens in the other as a matched pair.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Lens Surface Assessment of Study Lenses - Surface Wettability
Time Frame: 15min & 6hrs
|
Investigator's objective assessment of lens surface wettability at 15min and 6hrs.
Scale (0-4; 0=non-wetting, 4=Excellent)
|
15min & 6hrs
|
|
Lens Surface Assessment of Study Lenses - Deposits
Time Frame: 15min & 6hrs
|
Investigator's objective assessment of lens surface deposition at 15min and 6hrs.
Graded on the appearance of lens surface by slit lamp.
Rated on a scale (0-4; 0=no deposits, 4=deposits ≥0.5mm or film > 75% of surface)
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15min & 6hrs
|
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Lens Surface Assessment of Study Lenses - Surface Acceptance
Time Frame: 15min & 6hrs
|
Investigator's objective assessment of surface acceptance at 15min and 6hrs.
Rated on a scale (0-4; 0=very poor, 4=excellent)
|
15min & 6hrs
|
|
Subjective Rating For Comfort - Comfort Since Last Visit
Time Frame: 15min, 3hrs, 6hrs
|
Participant's subjective rating of comfort now of study lenses.
Surveyed at 15min, 3hr, and 6hr.
Scale (0-100; 0=cannot be worn, causes pain, 100=cannot be felt ever)
|
15min, 3hrs, 6hrs
|
|
Subjective Rating For Comfort Preference
Time Frame: 1min, 15min, 3hrs, 6hrs
|
Participant's subjective rating of comfort preference of study lenses.
Scale: (Strongly Prefer Right lens - Strongly Prefer Left Lens)
|
1min, 15min, 3hrs, 6hrs
|
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Subjective Rating For Handling - Insertion
Time Frame: 1 min
|
Participant's subjective rating for ease of insertion of the study lenses.
Scale (0-100; 0=could not place lens on eye;100=always easy to place lens on eye)
|
1 min
|
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Subjective Rating For Handling - Removal
Time Frame: 1 min
|
Participant's subjective rating for ease of removal of study lenses.
Scale (0-100; 0=could not remove lens from eye;100=always easy to place remove from eye)
|
1 min
|
|
Investigator's Assessment of Stability
Time Frame: 15min & 6hrs
|
Investigator's assessment of the study lenses overall stability difference measured from 0-180 degrees, 0=very good stability, 180=very bad stability.
|
15min & 6hrs
|
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General Lens Fit - Fit Acceptance
Time Frame: 15min & 6hrs
|
Investigator's assessment for fit acceptance of study lenses.
Scale: 0-4 (0=Should not be worn; 4=Perfect)
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15min & 6hrs
|
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Lens Fitting - Rotation/Mislocation
Time Frame: Baseline, 15min & 6hrs
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Investigator's observed the rotation/mislocation (toric mark) of study lenses from the desired 6 o'clock position following temp rotation 30 degrees, 10 blinks; rotation toward desired 6 o'clock position=(+); rotation away from desired 6 o'clock position=(-).
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Baseline, 15min & 6hrs
|
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Anterior Ocular Health - Corneal Staining (Central)
Time Frame: baseline & 6hrs
|
Corneal staining (central) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
(Scale 0-4, 0=No staining; 4= >45% of area)
|
baseline & 6hrs
|
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Anterior Ocular Health - Corneal Staining (Nasal)
Time Frame: baseline & 6hrs
|
Corneal staining (nasal) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
(Scale 0-4, 0=No staining; 4= >45% of area)
|
baseline & 6hrs
|
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Anterior Ocular Health - Corneal Staining (Temporal)
Time Frame: baseline & 6hrs
|
Corneal staining (temporal) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
(Scale 0-4, 0=No staining; 4= >45% of area)
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baseline & 6hrs
|
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Anterior Ocular Health - CornealStaining (Superior)
Time Frame: baseline & 6hrs
|
Corneal staining (superior) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
(Scale 0-4, 0=No staining; 4= >45% of area)
|
baseline & 6hrs
|
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Anterior Ocular Health - Corneal Staining (Inferior)
Time Frame: baseline & 6hrs
|
Corneal staining (inferior) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
(Scale 0-4, 0=No staining; 4= >45% of area)
|
baseline & 6hrs
|
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Anterior Ocular Health - Conjunctival Staining (Nasal)
Time Frame: baseline & 6hrs
|
Conjunctival staining (nasal) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
Scale: 0-4, (0=None; 4=Deep confluent).
|
baseline & 6hrs
|
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Anterior Ocular Health - Conjunctival Staining (Superior)
Time Frame: baseline & 6hrs
|
Conjunctival staining (superior) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
Scale: 0-4, (0=None; 4=Deep confluent).
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baseline & 6hrs
|
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Anterior Ocular Health - Conjunctival Staining (Temporal)
Time Frame: baseline & 6hrs
|
Conjunctival staining (temporal) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
Scale: 0-4, (0=None; 4=Deep confluent).
|
baseline & 6hrs
|
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Anterior Ocular Health - Conjunctival Staining (Inferior)
Time Frame: baseline & 6hrs
|
Conjunctival staining (inferior) for comfilcon (A) toric and comfilcon (A) toric XR lenses assessed at baseline and 6 hours.
Scale: 0-4, (0=None; 4=Deep confluent).
|
baseline & 6hrs
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Pete S Kollbaum, O.D., Indiana University
Study record dates
Study Major Dates
Study Start
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 (Estimate)
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
- CV-14-04
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