Purevision 2 HD For Presbyopia are the latest addition to the popular range of contact lenses from Bausch & Lomb. Designed to provide clear, high definition vision at all distances, these lenses are perfect for those who suffer from presbyopia, & look for an alternative to their bifocals or reading glasses. Purevision 2 HD For Presbyopia contact lenses are made from silicone hydrogel: a material which enhances oxygen transmission, ensuring long-lasting hydration to your eyes. In addition, these multifocal lenses feature the cutting-edge 3-Zone Progressive