Subjective Evaluation of a Commercially Marketed Contact Lens Amongst a Subset of the Contact Lens Wearing Population

Inclusion Criteria: * Habitual spherical soft contact lens wearer who wears a contact lens with a recommended replacement schedule of 2 weeks or monthly. * Wears lenses at least 5 days per week and at least 12 hours per day. * Removes contact lenses daily or, if prescribed by their regular eye care practitioner, sleeps overnight in contact lenses no more than 6 consecutive nights. * Reports 2 or fewer common lens-related symptoms with current contact lenses with a frequency of "frequently" or "always". * Able to achieve distance visual acuity of at least 20/40 in each eye at the dispense of each pair of study lenses. * Has acceptable or optimal fit for each eye at the dispense of each pair of study lenses. * Other protocol-defined inclusion/exclusion criteria may apply. Exclusion Criteria: * Eye injury or surgery within twelve weeks prior to enrollment. * Pre-existing ocular irritation that would preclude contact lens fitting. * Currently enrolled in any clinical trial. * Any use of medications for which contact lens wear could be contraindicated as determined by the investigator. * Currently sleeping in contact lenses for more than 6 consecutive nights. * Currently wearing daily disposable contact lenses and certain protocol-specified lens brands. * Other protocol-defined inclusion/exclusion criteria may apply.