The ultra-chopper is attached to your phaco tip in place of the phaco needle and it can then harness the ultrasonic power to effectively cut into even a dense nucleus to divide it. Once the nucleus is split into quadrants, the regular phaco needle can be placed on the handpiece and quadrant removal can be accomplished. In this case, the cataract is not very dense but the resident surgeon uses the ultra-chopper to become familiar with it on a more controlled case.
