Clinical Evaluation of Approved and Investigational Contact Lenses

Inclusion Criteria: * The subject must read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form. * The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol. * The subject must be between 18 to 40 years of age at the time of consent. * The subject's vertexed spherical equivalent distance refraction must be in the range of +8.00 to -12.00 in each eye. * Subject wears habitual contact lenses a minimum of 4 days per week, eight hours per day. * The subject must have best corrected visual acuity of 20/30 or better in each eye. * The subject must be a habitual frequent replacement daily wear spherical silicone hydrogel soft contact lens wearer in both eyes. * The subject must be able to wear contact lenses for a minimum of 8 hours each day during the study. * The subject must have normal eyes (i.e., no ocular medications or infections of any type). Exclusion Criteria: * Currently pregnant or lactating (subjects who become pregnant during the study will be discontinued). * Any ocular or systemic allergies or diseases that may interfere with contact lens wear. * Any systemic disease, autoimmune disease, or use of medication, which may interfere with contact lens wear. * Any known sensitive/allergic to Ingredients of OPTI-FREE® PureMoist® solution. * Entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, aphakia, or moderate or above corneal distortion. * Any previous, or planned, ocular or interocular surgery (e.g., radial keratotomy, photorefractive keratectomy (PRK), laser-assisted in situ keratomileusis (LASIK), etc.). * Any grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the 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. * Any ocular infection. * Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear. * Participation in any contact lens or lens care product clinical trial within 7 days prior to study enrollment.