#$%^&*AU2009215227B220110929.pdf#####MODULATED PULSED ULTRASONIC POWER DELIVERY SYSTEM AND MBTIOD ABSTRACT A method for providing modulated ultrasonic energy to an ocular region during a phacoemulsification procedure, the method comprising: applying ultrasonic energy to the 5 ocular region using at least one modulated energy period, wherein each modulated period comprises: applying first ultrasonic energy to the ocular region using a high energy pulse for a first period of time and subsequently applying second ultrasonic energy to the ocular region after applying first ultrasonic energy, said second ultrasonic energy applied using a low nonzero energy pulse having magnitude lower than said relatively high energy pulse 10 for a second period of time. Fig. I
