Bausch & Lomb's PureVision Toric silicone hydrogel contact lenses are designed to give your eyes outstanding comfort and visual quality. PureVision Toric lenses use patented AerGel material, making them exceptionally healthy. AerGel lens material is also highly breathable, allowing greater levels of oxygen to freely flow through the lens. Here's to keeping your eyes clear, white, and healthy. The Bausch & Lomb PureVision Visibility Tinted Contact Lens is indicated for daily wear 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.