A system and method for performing site specific therapy to alleviate tissue swelling, involving the placement and use of recovery catheters having semipermeable membranes adapted to recover bulk fluid or fluid components from a tissue site. The lens cell body has a lens cell central longitudinal axis and a lens cell optical axis, eccentrically offset from the lens cell central longitudinal axis. A cap layer is formed to cover the dopant-rich layer. The data network shares the cable spectrum with other services and uses frequency bands not used by other services. In one embodiment, the programmable region is ion conductive material, and at least one of the first and second electrodes has an electrochemically active surface directly against the ion conductive material.