The invention relates to a suction control for phacoemulsification aspirationsystem, comprising: a) a handpiece (22) having an aspiration function； b) a controlconsole (12) c) an aspiration pump (16) at least partially located in the controlconsole, the aspiration pump providing vacuum to the surgical handpiece throughan aspiration line (20)； d) an aspiration vent (30) in the aspiration line betweenthe handpiece and the pump； and e) a user adjustable input device in the controlconsole, the user adjustable input device varying the operation of the operationof the aspiration vent and/or aspiration pump based upon user inputs.
