an irrigation and aspiration syringe is provided for one - handed operation . a cylindrical syringe barrel has a first axial control grip projecting from the nozzle end of the syringe . an outer tubular member surrounds the syringe barrel and is connected to the rod of a plunger fitted within the syringe cartridge . a second axial control grip is affixed to the outer tubular member . aspiration is effected by oppositely directed axial forces applied to the first and second control grips with the thumb and forefinger of one hand .