Bausch & Lomb PureVision contact lenses are the first lenses made using the unique AerGel material. PureVision contact lenses deliver the ultimate in material and optical design to provide you with exceptional vision, health, and comfort. AerGel silicone hydrogel material, coupled with Performa surface, delivers enhanced wettability and deposit-resistance, all without inhibiting oxygen flow or fluid transport. The Bausch & Lomb PureVision visibility tinted contact lens is indicated for daily or extended wear from 1 to 30 days between removals for cleaning and disinfection or disposal of the lens, as recommended by the eye care professional.