A Multi-Center Study Comparing the Clinical Performance of Two Silicone Hydrogel Lenses Over 1 Month of Daily Wear

A Multi-Center Study Comparing the Clinical Performance of Two Silicone Hydrogel Lenses Over 1 Month of Daily Wear

A Multi-Center Study Comparing the Clinical Performance of Two Silicone Hydrogel Lenses Over 1 Month of Daily Wear

Two-month, single masked, randomized, bilateral, crossover, 1-month of daily wear in each study lens.

Inclusion Criteria:

• Is between 18 and 40 years of age (inclusive)
• Have the use of a mobile phone to send and receive text messages throughout the day for the duration of the study
• Has had a self-reported visual exam in the last two years
• Is an adapted soft CL wearer
• Has a Contact Lens (CL) spherical prescription between - 1.00 and - 9.00 (inclusive)
• Has less than 0.75D spectacle cylinder in each eye
• Is correctable to a visual acuity of 20/25 or better in both eyes
• Has clear corneas and no active ocular disease
• Has read, understood and signed the information consent letter
• Is willing to comply with the wear schedule (at least 40 hrs per week)
• Is willing to comply with the visit schedule

Exclusion Criteria:

• Has never worn contact lenses before
• Currently wears rigid gas permeable contact lenses
• Has a history of not achieving comfortable CL wear (5 days per week; > 8 hours/day)
• Has a contact lens prescription outside the range of - 1.00 to -9.00D
• Has a spectacle cylinder greater than -0.50D of cylinder in either eye
• Has best corrected spectacle distance vision worse then 20/25 in either eye
• 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
• Has persistent, clinically significant corneal or conjunctival staining
• Has active neovascularization or any central corneal scars
• Is aphakic
• Is presbyopic
• Has undergone corneal refractive surgery
• Is participating in any other type of eye related clinical or research study