The purpose of this study is to compare the performance of commercially marketed contact lenses to habitual contact lenses in a selected segment 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.

Adverse event data were collected for the duration of the trial: 86 days.

This reporting group includes all enrolled and exposed participants.

Participants were masked to lotrafilcon B lenses only.