The number one rule of phacoemulsification and aspiration cataract sur
gery is to know your machine. This Chapter is designed to help the sur
geon who is currently using phacoemulsification, of those who wish to
understand more about technique, learn the basics and technology of th
e various types of phacoemulsification machines. Fluidics, pump design
, handpiece mechanics, phacoemulsification needles, and fundamentals o
f phacoemulsification of cataracts will be reviewed.