High vacuum and aspiration on phacoemulsification efficiency and chatter for Centurion.

Objective: To compare relative efficiency and chatter of high aspiration and vacuum settings.

Design: In vitro laboratory study.

Methods: The John A.

Optimization of transversal phacoemulsification settings in peristaltic mode using a new transversal ultrasound machine.

Purpose: To determine the optimum bottle height, vacuum, aspiration rate, and power settings in the peristaltic mode of the Whitestar Signature Pro machine with Ellips FX tip action (transversal).

Setting: John A. Moran Eye Center Laboratories, University of Utah, Salt Lake City, Utah, USA.