Figure 5From: Comparison of occlusion break responses and vacuum rise times of phacoemulsification systems Vacuum rise times at a vacuum limit of 400 mmHg. Testing was performed with flow rates of (A) 30 cc/minute and (B) 60 cc/minute. Gravity fluidics (bottle height, 90 cm) was used unless otherwise indicated. IOP = intraoperative pressure.Back to article page