Fig. 10. Bimanual phaco through two paracentesis incisions with WhiteStar (AMO, Santa Ana, California) and an irrigating chopper (MicroSurgical Technology, Redmond, Washington). The final pie-shaped segment is ready for chopping, as shown in figure 8. High vacuum (307 mm Hg) and low levels of ultrasound (current 5%, total Effective Phaco Time to this point in the procedure, 0.05 second at 1.2% Average Power) create efficient nuclear removal.