Assessment of Daily Disposable Silicone Hydrogel Lens 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
-
-
Ohio
-
Columbus, Ohio, United States, 43210
- Ohio State University
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Able to read, comprehend and sign an informed consent (or parental consent/subject assent, as appropriate).
- Willing to comply with the study visit schedule.
- Ages 15 to 39.
- Has access to a cellular telephone with text messaging capabilities.
- Has a current pair of spectacles.
- 'Neophyte' - In this work, 'neophyte' will be taken to mean any subject who has never been dispensed contact lenses. A subject who has taken part in a non-dispensing clinical study or has been fitted with contact lenses in practice but never went on to actually wear the lenses, will also be classified as a 'neophyte'.
- Spherical contact lens (CL) prescription between -0.75D and -6.00D and spectacle cylinder equal to or less than 0.75 DC.
- Monocular best-corrected distance visual acuity (VA) ≥ 20/30 Snellen in each eye.
- Subject agrees to "intent" of wearing the CLs at minimum 6 hours/day for at least 4 days per week.
- They agree not to participate in other clinical research during the duration of this study.
Exclusion Criteria:
- Active ocular allergy, infection, injury, inflammation, or abnormality (e.g., keratoconus) that might interfere with soft contact lens wear.
- Prior corneal refractive surgery or corneal irregularity (e.g., keratoconus).
- Systemic disease, which might interfere with contact lens wear.
- Medication usage that may be associated with eye dryness.
- Use of any topical medication such as eye drops or ointment.
- Pregnant or lactating (by self-report).
- Aphakia.
- Grade 2 or greater of any of the following ocular surface signs: corneal edema, corneal vascularization, corneal staining, tarsal conjunctival changes or any other abnormality, which would normally contraindicate contact lens wear.
- Have participated in any other clinical trial or research in the two weeks prior to starting this study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Narafilcon B Contact Lens
Investigational Silicone Hydrogel Contact Lens
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Other Names:
|
|
Active Comparator: Spectacles
|
spectacle wearers
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Papillary Conjunctivitis
Time Frame: 1 Year
|
Swelling of the papillary (Papillary conjunctivitis) area of the eye was assessed using a slit-lamp.
Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.
The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.
|
1 Year
|
|
Conjunctival Hyperemia
Time Frame: 1 Year
|
Comparison of the amount of redness in the conjunctival area of the eye, between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.
The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.
|
1 Year
|
|
Limbal Hyperemia
Time Frame: 1 Year
|
Swelling of the vessels in the limbal area of the eye using a slit lamp.
Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.
The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.
|
1 Year
|
|
Corneal Staining
Time Frame: 1 Year
|
Abrasions in the cornea area of the eye using a slit lamp.
Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.
|
1 Year
|
|
Conjunctival Staining
Time Frame: 1 Year
|
Mild abrasions of the conjunctival area of the eye.
Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.
The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.
|
1 Year
|
|
Corneal Neovascularization
Time Frame: 1 Year
|
New vascularization of the Cornea.
Comparison between the two study arms will be assessed using data generated from a slit-lamp examination, using an Efron scale with 0.1 unit increments.
The Efron scale has a range of 0 (normal) to 4 (Severe) and is subjectively assessed for 0.1 increments by the clinician, with the higher the magnitude of the number the worse the score.
|
1 Year
|
|
Differences in Subjective Comfort From the Contact Lens User Experience (CLUE) Questionnaire
Time Frame: 1 Year
|
The subjective comfort questionnaire CLUE, assesses the overall lens comfort.
The CLUE Questionnaire is a validated patient-reported outcomes questionnaire to assess patient-experience attributes of soft, disposable contact lenses in the US, ages 18-65.
Scores follow a normal distribution with a population average score of 60 (SD 20), where higher scores indicate a more favorable/positive response, with a range of 0-120.
The differences between: (final visit and first visit) and then (final visit and 6 months) are reported.
|
1 Year
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Comfortable Wearing Time
Time Frame: 1 Year
|
Average numbers of overall average daily contact lens wear hours and average daily comfortable wear hours as reported at each follow-up visit.
|
1 Year
|
Collaborators and Investigators
Sponsor
Sponsor
Collaborators
Collaborators
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
- CR-0916
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