knobs 20 to be labeled in virtually any language the microsurgical control system 10 is adapted for use with a number of different surgical instruments as shown in fig1 a fiber optic illumination instrument 214 is coupled to the console 12 via fiber optic cable 212 also illustrated is a fragmentation emulsification instrument 28 coupled to the console 12 through an electrical cable 30 the instrument 28 is also coupled to a collection container or cassette 100 through an aspiration tube 31 a cutting instrument 32 is also shown which is coupled to the console 12 through tubing 34 and to the cassette 100 through tubing 35 the cutting instrument 32 may be a guillotine cutter for vitrectomy procedures or it may be a microscissors instrument for proportionate and multiple cutting however when the microscissors instrument is used the instrument is not connected to the cassette 100 while certain microsurgical instruments have been illustrated in fig1 it will be understood that the microsurgical control system 10 can be used with other similarly equipped instruments in general any of the microsurgical instruments are actuated or controlled by fluid pressure positive pressure or negative pressure however it should be appreciated that other suitable types of control signals may be used in the appropriate application to provide irrigation aspiration capabilities the control system 10 further includes the removable cassette 100 which may be inserted into a cassette slot 102 in the console 12 the cassette 100 has a passageway opening 148 to which an aspiration tube from an aspiration instrument may be connected the console 12 also includes a plurality of couplers 40 to which surgical instruments described above may be attached above each coupler 40 is a light emitting diode 42 which is illuminated when the instrument connected to.