A dispenser that is mountable on a vertical or horizontal surface for dispensing adhesive-backed articles from a bulk stock using a single hand. An example method forms an isolation region in a semiconductor substrate and sequentially deposits a pad oxide layer, a pad nitride layer and a first oxide layer on the substrate and the isolation region. The composition is introduced into the vitreous in an amount effective to induce crosslinking of the vitreous and to induce substantially complete or partial posterior vitreous detachment from the retina without causing inflammation of the retina. A second signal having a second frequency is applied to the second input. An auxiliary rod member and umbrella holder may be coupled to the second rod member. The hardware registers may be shared by the two Architectures.