Performance Comparison Between Fanfilcon A and Senofilcon A Sphere 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
-
-
California
-
San Diego, California, United States, 92123
- Eric M. White O. D., Inc
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-
Florida
-
Sarasota, Florida, United States, 34232
- Golden Vision
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Kansas
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Pittsburg, Kansas, United States, 66762
- Kannarr Eye Care
-
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Pennsylvania
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State College, Pennsylvania, United States, 16801
- Nittany Eye Associates
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
A person is eligible for inclusion in the study if he/she:
- Is between 18 and 40 years of age (inclusive)
- Has read, understood and signed the information consent letter
- Has had a self-reported eye exam in the last two years
- Is a spherical soft contact lens wearer
- Has a contact lens prescription that fits within the available parameters of the study lenses
- Has a spectacle cylinder no greater than 0.75D (Diopters) in each eye
- Can achieve best corrected spectacle distance visual acuity of 20/25 (0.10 logMAR) or better in each eye
- Can achieve a distance visual acuity of 20/30 (0.18 logMAR) or better in each eye with the study contact lenses
- Has clear corneas and no active ocular disease
- Is willing and anticipated to be able to comply with the wear schedule (8 hours per day; 5 days a week of lens wear)
- Is willing and able to follow instructions and maintain the appointment schedule
Exclusion Criteria:
A person will be excluded from the study if he/she:
- Has a history of not achieving comfortable CL (Contact Lens) wear (defined as 5 days per week; >8 hours/day)
- Is currently wearing senofilcon C (2 weeks lens), senofilcon A 1-Day, senofilcon C (monthly lens) or enfilcon A contact lenses
- Is habitually using rewetting/ lubricating eye drops more than once per day
- Presents with clinically significant anterior segment abnormalities
- Presents with ocular or systemic disease or need of medications which might interfere with contact lens wear
Presents with slit lamp findings that would contraindicate contact lens wear such as:
- Pathological dry eye or associated findings
- Significant pterygium, pinguecula, or corneal scars within the visual axis
- Neovascularization > 0.75 mm in from of the limbus
- Giant papillary conjunctivitis (GCP) worse than grade 1
- Anterior uveitis or iritis (or history in past year)
- Seborrheic eczema of eyelid region, Seborrheic conjunctivitis
- History of corneal ulcers or fungal infections
- Poor personal hygiene
- Has a known history of corneal hypoesthesia (reduced corneal sensitivity)
- Has aphakia, keratoconus or a highly irregular cornea
- Has presbyopia or has dependence on spectacles for near work over the contact lenses
- Has undergone corneal refractive surgery
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Active Comparator: fanfilcon A
Participants are randomized to wear fanfilcon A for two weeks during the cross over study.
|
contact lens
|
|
Active Comparator: senofilcon A
Participants are randomized to wear senofilcon A for two weeks during the cross over study.
|
contact lens
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Overall Comfort
Time Frame: 2 weeks
|
Subjective assessment for comfort is assessed.
Scale 0-10, 0=painful, 10=can't feel
|
2 weeks
|
|
Overall Dryness
Time Frame: 2 weeks
|
Subjective ratings for dryness is assessed on a scale of 0-10, 0=extremely dry, 10=no dryness
|
2 weeks
|
|
Vision Quality
Time Frame: 2 weeks
|
Subjective ratings of vision quality is assessed on a scale 0-10, 0=not sharp/not clear, 10=sharp/clear
|
2 weeks
|
|
Lens Handling
Time Frame: 2 weeks
|
Subjective ratings of lens handling - insertion and removal - is assessed using scale 0-10, 0=difficult to handle, 10=very easy to handle
|
2 weeks
|
|
Vision Satisfaction
Time Frame: 2 weeks
|
Subjective ratings of vision satisfaction is assessed on a scale 0-10, 0=completely dissatisfied, 10=completely satisfied.
|
2 weeks
|
|
Lens Centration
Time Frame: 2 weeks
|
Lens centration will be recorded by degree and direction in the primary position.
(Optimum, decentration acceptable, decentration unacceptable).
|
2 weeks
|
|
Conjunctival Staining
Time Frame: 2 weeks
|
Assessed using slit lamp with blue light and sodium fluorescein, low medium magnification. 0=None, no staining present
|
2 weeks
|
|
Smoothness
Time Frame: 2 weeks
|
Subjective ratings for lens sensation of smoothness is assessed on a scale 0-10, 0=not smooth at all, 10=totally smooth
|
2 weeks
|
|
Clean Feeling
Time Frame: 2 weeks
|
Subjective ratings for lens clean feeling is assessed on a scale 0-10, 0=not clean at all, 10=lenses feel perfectly clean
|
2 weeks
|
|
Lens Hydrated
Time Frame: 2 weeks
|
Subjective ratings for lens sensation is assessed on a scale 0-10, 0=totally dehydrated, 10=totally hydrated
|
2 weeks
|
|
Lens Wettability
Time Frame: 2 weeks
|
Subjective ratings for lens wettability is assessed on a scale 0-10, 0=non-wettable, 10=highly wettable
|
2 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Study Director: Lyndon Jones, PhD, FAAO, Centre for Contact Lens Research
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 (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
- EX-MKTG-73
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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