A phacoemulsifier is a sophisticated machine that sends ultrasonic vibrations to a tiny probe that has been inserted through an incision into the cloudy lens that constitutes the cataract. Vibrating at about 40,000 cycles per second, this probe emulsifies or breaks up the cataract into pieces so small that they can be vacuumed from the lens capsule of the eye. The phaco machine also provides the vacuum necessary to remove these particles through the hollow center of the probe. At the same time, it introduces an irrigation solution that maintains pressure and prevents the eye from collapsing.
Abbott Medical Optics