Evaluation of Contact Lenses and Conjunctival Staining in Normal Patients

Inclusion Criteria: * Successfully wearing hydrogel and/or silicone hydrogel contact lenses; * Read, sign, and date informed consent/HIPAA document; * Vision correctable to 20/30 (Snellen) or better in each eye at distance with habitual spectacles; * Willing and able to discontinue contact lens wear when requested during the study; * Other protocol-defined inclusion criteria may apply. Exclusion Criteria: * Evidence or history of ocular disease or pathology; * One functional eye or a monofit lens; * Use of concomitant topical ocular prescription or over-the-counter ocular medications; * History of seasonal allergies with significant ocular side effects which may have an adverse impact on contact lens wear; * Other protocol-defined exclusion criteria may apply.