ACUVUE OASYS Bifocal Medium Add contacts lenses are the perfect alternative to your bifocal eyeglasses. ACUVUE OASYS Bifocal Lenses were made with you in mind to help you see more clearly at every distance. They are made with Hydraclear® Plus technology that helps your eyes retain moisture and feel comfortable all day long. Lenses should be thrown away and replaced monthly to keep your eyes in optimal shape. Manufactured by Vistakon. Available in a pack of 6.