Product Description PureVision2 for Presbyopia are monthly multifocal contact lenses by Bausch & Lomb, guaranteed to provide optimal comfort and healthy vision for those with presbyopia. You can wear these lenses for 30 days as daily wear for up to 16 hours each day, making them the ideal choice for anyone with a busy schedule, or who is susceptible to dry eyes. The design of these silicone hydrogel contact lenses allows up to six times more air to reach the eye than standard hydrogel lenses typically allow, resulting in fresh, hydrated and healthy eyes. PureVision2 for Presbyopia delivers seamless transitioning. With a 3 Zone Progressive Design, these lenses tie together different prescriptions to ensure comfortable and clear vision at all distances, facilitating easy transitioning between short, intermediate, and long distances. You ll no longer need to constantly put on or remove your reading glasses. Need more optical advice help? Ask our optical experts