Vistakon Investigational Lens Worn as a Single Use Daily Wear
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Utah
-
Salt Lake City, Utah, United States, 84106
-
-
Virginia
-
Virginia Beach, Virginia, United States, 23455
-
-
Wyoming
-
Laramie, Wyoming, United States, 82070
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- eyes must be best-corrected to a visual acuity of 20/30 or better in each eye
- must be able and willing to wear soft contact lenses on a single use, daily wear basis for the duration of the study
- distance spherical contact lens prescription must be within the range available for the study
Exclusion Criteria:
- systemic diseases which may interfere with contact lens wear
- ocular infection or clinically significant ocular disease
- any previous intraocular surgery
- grade 2 or greater slit lamp findings
- currently pregnant or lactating
- more than 1.00D of refractive astigmatism in either eye
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: narafilcon B
contact lens
|
contact lens
|
|
Active Comparator: etafilcon A
contact lens
|
contact lens
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Slit Lamp Findings - Corneal Edema
Time Frame: after 1 week of lens wear
|
Investigators examined subjects using a slit lamp and the following scale: 0=none, 1=trace, 2=mild, 3=moderate, 4=severe.
This outcome measures the number of eyes that had corneal edema graded 2 or higher at the 1-week visit.
|
after 1 week of lens wear
|
|
Corneal Edema at Month 1
Time Frame: after 1 month of lens wear
|
Number of eyes with corneal edema graded 2 or higher at the 1 month visit.
Investigators examined subjects using a slit lamp and the following scale: 0=none, 1=trace, 2=mild, 3=moderate, 4=severe.
|
after 1 month of lens wear
|
|
Slit Lamp Findings - Corneal Neovascularization
Time Frame: after 1 week of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had corneal neovascularization graded 2 or higher at the 1-week visit.
|
after 1 week of lens wear
|
|
Slit Lamp Findings - Corneal Neovascularization
Time Frame: after 1 month of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had corneal neovascularization graded 2 or higher at the 1-week visit.
|
after 1 month of lens wear
|
|
Slit Lamp Findings - Corneal Staining
Time Frame: after 1 week of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had corneal staining graded 2 or higher at the 1-week visit.
|
after 1 week of lens wear
|
|
Slit Lamp Findings - Corneal Staining
Time Frame: after 1 month of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had corneal staining graded 2 or higher at the 1-week visit.
|
after 1 month of lens wear
|
|
Slit Lamp Findings - Injection
Time Frame: after 1 week of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had injection graded 2 or higher at the 1-week visit.
|
after 1 week of lens wear
|
|
Slit Lamp Findings - Injection
Time Frame: after 1 month of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had injection graded 2 or higher at the 1-week visit.
|
after 1 month of lens wear
|
|
Slit Lamp Findings - Tarsal Abnormalities
Time Frame: after 1 week of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had tarsal abnormalities graded 2 or higher at the 1-week visit.
|
after 1 week of lens wear
|
|
Slit Lamp Findings - Tarsal Abnormalities
Time Frame: after 1 month of lens wear
|
Investigators examined subjects using a slit lamp and the following scale:0=none, 1=trace, 2=mild, 3=moderate, 4= severe.
This outcome measures the number of eyes that had tarsal abnormalities graded 2 or higher at the 1-week visit.
|
after 1 month of lens wear
|
|
Slit Lamp Findings - Infiltrates
Time Frame: after 1 week of lens wear
|
Investigators examined subjects using a slit lamp and recorded the presence or absence of infiltrates.
This outcome measures the number of eyes that had infiltrates present at the 1-week visit.
|
after 1 week of lens wear
|
|
Slit Lamp Findings - Infiltrates
Time Frame: after 1 month of lens wear
|
Investigators examined subjects using a slit lamp and recorded the presence or absence of infiltrates.
This outcome measures the number of eyes that had infiltrates present at the 1-week visit.
|
after 1 month of lens wear
|
|
Subject Reported Symptoms
Time Frame: after 1 week of lens wear
|
Number of eyes in which subjects reported lens-related symptoms after 1 week of lens wear.
|
after 1 week of lens wear
|
|
Subject Reported Symptoms
Time Frame: after 1 month of lens wear
|
Number of eyes in which subjects reported lens-related symptoms after 1 month of lens wear.
|
after 1 month of lens wear
|
|
Visual Acuity (VA)
Time Frame: after 1 week
|
Investigators assessed visual acuity per eye using a Snellen visual acuity chart.
This outcome measures the number of eyes, wearing vision correction, that measured visual acuity worse than 20/30 at the 1-week visit.
|
after 1 week
|
|
Visual Acuity (VA)
Time Frame: after 1 month
|
Investigators assessed visual acuity per eye using a Snellen visual acuity chart.
This outcome measures the number of eyes, wearing vision correction, that measured visual acuity worse than 20/30 at the 1-month visit.
|
after 1 month
|
|
Average Wear Time
Time Frame: after 1 week of lens wear
|
after 1 week of lens wear
|
|
|
Average Wear Time
Time Frame: after 1 month of lens wear
|
after 1 month of lens wear
|
Collaborators and Investigators
Sponsor
Sponsor
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
- CR-1655
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