Clinical Evaluation of a Silicone Hydrogel Lens

The purpose of this study is to assess the performance of an investigational contact lens among contact lens wearers.

Inclusion Criteria:

• Currently wearing lotrafilcon A lenses in both eyes for a minimum of 5 days per week, 8 hours per day, for 3 months.
• Removes contact lenses daily or sleeps overnight in contact lenses (up to 30 consecutive nights) as prescribed by regular eye care practitioner.
• Able to achieve distance visual acuity of at least 20/40 in each eye with study lenses.
• Other protocol inclusion/exclusion criteria may apply.

Exclusion Criteria:

• Eye injury or surgery within 12 months prior to enrollment.
• Currently enrolled in any clinical trial.
• History of corneal refractive surgery.
• Other protocol inclusion/exclusion criteria may apply.