Air Optix plus Hydraglyde Multifocal contact lenses are used to correct presbyopia. They are highly oxygen permeable lensesthat can be worn for up to a month and are made from the new silicone hydrogel material lotrafilcon B with a water content of 33%.This modern silicone material with the proven HydraGlyde Moisture Matrix is combined with the well-known SmartShield technology and ensures optimal wetting of the eye surface and thus long-lasting wearing comfort. Precision Transition Design technology enables sharp vision at all distances.