Prospective Study of Lens Performance of a Monthly Replacement Lens at Two Weeks and Four Weeks

Prospective Study of Lens Performance of a Monthly Replacement Lens at Two Weeks and Four Weeks

The purpose of this study is to compare the overall performance of a monthly replacement contact lens when worn for one month and when worn for two weeks.

Inclusion Criteria:

• Habitual and successful wearers of contact lenses made of lotrafilcon B material for at least 4 weeks prior to enrollment.
• Good general health.
• Sphere requirement in the range +6.00 to -10.00 with astigmatism or multifocal correction or no astigmatism or multifocal correction.
• Ability to comply with all protocol-mandated procedures and to attend all scheduled office visits.
• Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

• Anterior segment abnormalities (i.e., cataracts, opacities, etc.) or active anterior segment disease.
• Administration of any investigational drug or device within 14 days of study initiation.
• Use of any eye drops with a pharmacological effect within 7 days of Visit 1.
• Known local or systemic hypersensitivity to contact lens cleaning and disinfecting solutions.
• Post-refractive surgery.
• Currently pregnant or lactating by case history.
• Other protocol-defined exclusion criteria may apply.