With a Dk/t of 175, NIGHT & DAY delivers the highest oxygen transmissibility of any available soft contact lens for the health of your patients' eyes.
More Oxygen Proprietary Surface Data Proves It Specifications References
Oxygen transmissibility is a critical success factor for healthy contact lens wear. However, some contact lenses allow significantly more oxygen to pass through the lens. See how NIGHT & DAY and PureVision measure up.
  • 175 Dk/t @ -3.00D far surpasses the critical minimum of 125 Dk/t for no stromal anoxiaduring overnight wear1
  • A Dk/t level of 125 has also been confirmed by 3 other independent researchers to be an important value for overnight wear2,3,4
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