Four Week Performance Comparison Between Two Commercially Available Silicone Hydrogel Lenses

4 Week Performance Comparison Between 2 Commercially Available Silicone Hydrogel Lenses

The purpose of this study is to compare the performance of two commercially marketed contact lenses when worn for up to 4 weeks in a daily wear modality.

Inclusion Criteria:

• Habitual spherical soft contact lens wearer who wears a contact lens brand with a recommended replacement schedule of 2 weeks or greater.
• Have a need for correction in both eyes and be correctable to at least 20/40 distance vision in each eye at the dispense of study lenses.
• Willing and able to wear spherical contact lenses within the available range of powers.
• Wears contact lenses at least 5 days per week and at least 10 hours per day, removing them nightly.
• Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

• Eye injury or surgery within twelve weeks prior to enrollment.
• Currently enrolled in any clinical trial.
• Any use of medications for which contact lens wear could be contraindicated as determined by the investigator.
• Astigmatism of 1.00D or more.
• Currently wearing contact lenses in a daily disposable modality.
• Currently wearing AIR OPTIX AQUA or PureVision 2 contact lenses
• Currently sleeping overnight in contact lenses on an occasional or extended wear basis.
• Other protocol-defined exclusion criteria may apply.