Clinical Evaluation of Etafilcon A Contact Lenses Using a Novel Manufacturing Technology

Inclusion criteria

• Potential subjects must satisfy all of the following criteria to be enrolled in the study:

• The subject must read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form.
• Appear able and willing to adhere to the instructions set forth in this clinical protocol.
• Must be at least 18 and not more than 70 years of age (including 70) at the time of screening.
• The subject must be a habitual and adapted wearer of hydrogel daily disposable brand contact lenses in both eyes (at least 1 month of daily wear).
• The subject must have normal eyes (i.e., no ocular medications or infections of any type).
• The subject's required spherical contact lens prescription must be in the range of -0.50 to -6.00 D in each eye.
• The subject's refractive cylinder must be < 0.75D in each eye.
• The subject must have best corrected visual acuity of 20/25 or better in each eye.

Exclusion criteria

• Potential subjects who meet any of the following criteria will be excluded from participating in the study:

• Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued).
• Any systemic disease, autoimmune disease, or use of medication that may interfere with contact lens wear.
• Any previous, or planned, ocular or interocular surgery (e.g., radial keratotomy, PRK, LASIK, etc.).
• Any ocular infection.
• Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear.
• Monovision or multi-focal contact lens correction.
• Participation in any contact lens or lens care product clinical trial within 14 days prior to study enrollment.
• History of binocular vision abnormality or strabismus.
• Any infectious disease (e.g., hepatitis, tuberculosis) or a contagious immunosuppressive disease (e.g., HIV, by self-report).
• Suspicion of or recent history of alcohol or substance abuse.
• History of serious mental illness.
• History of seizures.
• Employee or immediate family member of an employee of clinical site (e.g., Investigator, Coordinator, Technician)
• Any ocular allergies, infections or other ocular abnormalities that are known to interfere with contact lens wear and/or participation in the study. This may include, but not be limited to entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, aphakia, or corneal distortion
• Any Grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the Food and Drug Administration (FDA) classification scale
• Any previous history or signs of a contact lens-related corneal inflammatory event (e.g., past peripheral ulcer or round peripheral scar), or any other ocular abnormality that may contraindicate contact lens wear.