1459943982-5975a908-b7ff-4225-a9f6-ef4c41bbbab0

A multi-sleeve handpiece for performing phacoemulsification with a vibratory, ported needle and for cooling an exterior of an incision. A first urging member urges the lock member to the lock position. The stable cleaning composition described here is a low cost cleaning composition for use either alone or as an additive to a cleaning agent. A selection unit receives the power indication signal and the adjustment signal.