Try now these innovative Bausch and Lomb multifocal contact lenses. Purevision Multifocal contact lenses have been invented for people above 40 years old who are likely to suffer from presbyopia, a condition associated with decreased eye muscles flexibility. If you are 40 years old or more and you find it troubling to read text close to you but objects further away from your face also seem blurry, then you probably need multifocal contact lenses such as Purevision Multifocal. They will make it possible for you to easily see things both close and far away from you. What's more, they are made using special AerGel technology and great quality silicone-hydrogel material, which assures the best comfort and convenience of use.