Assessing the Performance of Lotrafilcon A Lenses During a Three Month Period

Inclusion Criteria: * On examination, have ocular findings considered to be "normal," and which would not prevent a participant from safely wearing contact lenses. * Be willing and able to follow instructions and meet the schedule of follow-up visits as defined in the informed consent. * Be able to wear the study lenses in the available powers. * Currently wear contact lenses for a minimum of 5 days a week, and at least 8 hours a day. * Other protocol-defined inclusion/exclusion criteria may apply. Exclusion Criteria: * Eye injury or surgery within twelve weeks of enrollment. * Pre-existing ocular irritation that would preclude contact lens fitting. * Currently enrolled in an ophthalmic clinical trial. * Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions. * History of corneal refractive surgery. * Other protocol-defined inclusion/exclusion criteria may apply.