All patients could use AIR OPTIX® NIGHT & DAY® AQUA's higher level of oxygen When you consider all possible wear possibilities, oxygen becomes a crucial factor. The higher the Dk/t of a contact lens, the closer the lens comes to fulfilling the oxygen needs of the cornea—especially the peripheral cornea.1
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	AIR OPTIX NIGHT & DAY AQUA breathable contact lenses transmit the highest oxygen of any available soft contact lens— Dk/t = 175 @ -3.00D A comprehensive 3-year study showed a reduction in biomicroscopy signs with NIGHT & DAY® lenses compared to low Dk/t lenses3

1. Alvord L, Hall J, Keyes D, et. aI. Corneal oxygen distribution with contact lens wear. Cornea. 2007;26(6):654-64. 2. CIBA VISION^® data on file, 2008. 3. Dillehay S, Long B, Barr J, et al. Summary of 3 year in-practice trial in the US with lotrafilcon A silicone hydrogel soft contact lenses. Optom & Vis Sci. 2005;(82)E-abstract 050080.
Biofinity is a registered trademark of CooperVision, Inc. ACUVUE is a registered trademark and OASYS and ADVANCE are trademarks of Johnson & Johnson Vision Care, Inc. PureVision is a registered trademark of Bausch & Lomb, Inc.