A method and system for use in an ocular surgical procedure is provided. Thedesign includes a handpiece havingan ultrasonically vibrating tip operational within a plurality of operatingmodes including a first operating mode and a sensing device,such as a vacuum pressure sensor. A controller is connected to the handpieceand sensing device and is configured to receivedata from the sensing device and adjust at least one operational parameter(time/duty cycle of operation, power during operation)associated with the first operating mode and adjust at least one parameterassociated with another operating mode based on thedata received from the sensing device. Operational modes may include multiplelongitudinal or non-longitudinal modes (torsional,transversal, etc.) or combinations of longitudinal and/or non-longitudinalmodes.
