Clinical Evaluation of ACUVUE® OASYS® 1-Day and ACUVUE® OASYS®

Study Overview
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Brief Summary
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The purpose of this study is to evaluate the performance of two commercially-available silicone hydrogel contact lenses in normal and low humidity environments after at least 7 days of wear.

Detailed Description
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After randomization to lens order, subjects attended study visits that included a 3 hour exposure to reduced humidity environment (20% relative humidity) and subsequent tear film assessments for each study lens.

Official Title
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Clinical Evaluation of ACUVUE® OASYS® 1-Day Daily Disposable Silicone Hydrogel Contact Lenses

Conditions
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Refractive Error

Intervention / Treatment
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* Device: Senofilcon A contact lenses with HydraLuxe™
* Device: Senofilcon A contact lenses


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Must sign an informed consent form; Adapted, current soft silicone hydrogel daily disposable contact lens wearer during the last 2 months; Prescription within power range of both study contact lenses, as stated in the protocol; Cylinder equal or lower than -0.75 diopter (D) in both eyes; Willing to wear lenses every day or at least a minimum of 5 days per week, 6 hours per day; Willing to discontinue artificial tears and rewetting drops on the days of study visits; Other protocol-specified inclusion criteria may apply. Exclusion Criteria: Ocular anterior segment infection, inflammation, abnormality, or active disease that would contraindicate contact lens wear; Use of systemic or ocular medications for which contact lens wear could be contraindicated as determined by the investigator; Monocular (only 1 eye with functional vision) or fit with only 1 lens; History of herpetic keratitis, ocular surgery, or irregular cornea; Pregnant or lactating; Current AO1D or AO lens wearer; Other protocol-specified exclusion criteria may apply.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: AO1D, then AO<br>Senofilcon A contact lenses with HydraLuxe™, followed by senofilcon A contact lenses. Each product worn bilaterally (in both eyes) for 10 days in a daily wear, daily disposable modality. | Device: Senofilcon A contact lenses with HydraLuxe™<br>* Contact lenses worn during Period 1 or 2, as randomized<br>* Other names: ACUVUE® OASYS® 1-Day Contact Lenses with HydraLuxe™ (AO1D);Device: Senofilcon A contact lenses<br>* Contact lenses worn during Period 1 or 2, as randomized<br>* Other names: ACUVUE® OASYS® (AO);|
| Other: AO, then AO1D<br>Senofilcon A contact lenses, followed by senofilcon A contact lenses with HydraLuxe™. Each product worn bilaterally for 10 days in a daily wear, daily disposable modality. | Device: Senofilcon A contact lenses with HydraLuxe™<br>* Contact lenses worn during Period 1 or 2, as randomized<br>* Other names: ACUVUE® OASYS® 1-Day Contact Lenses with HydraLuxe™ (AO1D);Device: Senofilcon A contact lenses<br>* Contact lenses worn during Period 1 or 2, as randomized<br>* Other names: ACUVUE® OASYS® (AO);|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tear Film Evaporation Rate in a Normal Environment After 10 ± 3 Days of Wear (Pre RH) | Tear film evaporation rate (amount of tears that evaporates over a surface area per seconds) assessment was performed using the Oregon Health Sciences University Evaporometer. Measurements were taken on both the right and left eyes after 3 hours of wear in a normal environment after 10 ± 3 days of lens wear. The temperature and humidity were measured within an air chamber around the ocular surface with the eyes opened and closed. The evaporation from the ocular surface was calculated as the difference between the evaporation rate of the skin taken during the closed eye measurement and the evaporation rate taken during the open eye measurement. The rate of evaporation was measured in g/cm2/sec for 2 humidity ranges. A higher evaporation rate can be a contributing factor to eye irritation and lens intolerance. | Day 10 ± 3 days, each product | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Tear Film Evaporation Rate After 10 ± 3 Days of Wear and After 3 Hours Exposure to Reduced Humidity (Post RH) | Tear film evaporation rate (amount of tears that evaporates over a surface area per seconds) assessment was performed using the Oregon Health Sciences University Evaporometer. Measurements were taken on both the right and left eyes after 6 hours of lens wear, including 3 hours of wear in a 20% reduced humidity environment (20% RH), after 10 ± 3 days of lens wear. The temperature and humidity were measured within an air chamber around the ocular surface with the eyes opened and closed. The evaporation from the ocular surface was calculated as the difference between the evaporation rate of the skin taken during the closed eye measurement and the evaporation rate taken during the open eye measurement. The rate of evaporation was measured in g/cm2/sec for 2 humidity ranges. A higher evaporation rate can be a contributing factor to eye irritation and lens intolerance. | Day 10 ± 3 days, each product | 
| Pre-Lens Tear Film Minimum Protected Area (MPA) in a Normal Environment After 10 ± 3 Days of Wear (Pre RH) | MPA is the minimum area of the contact lens surface (expressed in %) that is protected by the tear film during the entire interblink period. Pre-lens tear film MPA was assessed in a normal environment following 3 hours of wear. Higher values indicate less dry and more eye comfort. | Day 10 ± 3 days, each product | 
| Pre-Lens Tear Film MPA After 10 ± 3 Days of Wear and After 3 Hours Exposure to Reduced Humidity (Post RH) | MPA is the minimum area of the contact lens surface (expressed in %) that is protected by the tear film during the entire interblink period. Pre-lens tear film MPA was assessed following 6 hours of wear including 3 hours in a reduced humidity environment (20% RH).. Higher values indicate less dry and more eye comfort. | Day 10 ± 3 days, each product |