A device for extracting lens material from an eye, the device comprising: a distal, disposable portion releaseably coupleable to a proximal, reusable portion , the distal, disposable portion comprising: a cutting tube comprising a cutting tip and an inner lumen having an open distal end, the cutting tube sized and configured to extend through an anterior chamber of the eye and to a capsular bag; an aspiration pump housed within the disposable portion and fluidly coupled to the inner lumen of the cutting tube, the aspiration pump being a linear peristaltic pump comprising a central camshaft extending longitudinally through a symmetrical double chamber pumping manifold , the central camshaft having a rotational axis that is coaxially aligned with a longitudinal axis of the distal, disposable portion; and a cutting tube drive mechanism configured to oscillate the cutting tube, wherein, in use, the device is configured to aspirate material into the inner lumen; and the proximal, reusable portion configured to remain outside of the eye, the proximal, reusable portion comprising: an aspiration pump motor configured to drive the aspiration pump; and a coupler for releaseably operatively coupling the pump motor to the aspiration pump. a distal, disposable portion releaseably coupleable to a proximal, reusable portion , the distal, disposable portion comprising: a cutting tube comprising a cutting tip and an inner lumen having an open distal end, the cutting tube sized and configured to extend through an anterior chamber of the eye and to a capsular bag; an aspiration pump housed within the disposable portion and fluidly coupled to the inner lumen of the cutting tube, the aspiration pump being a linear peristaltic pump comprising a central camshaft extending longitudinally through a symmetrical double chamber pumping manifold , the central camshaft having a rotational axis that is coaxially aligned with a longitudinal axis of the distal, disposable portion; and a cutting tube drive mechanism configured to oscillate the cutting tube, wherein, in use, the device is configured to aspirate material into the inner lumen; and a cutting tube comprising a cutting tip and an inner lumen having an open distal end, the cutting tube sized and configured to extend through an anterior chamber of the eye and to a capsular bag; an aspiration pump housed within the disposable portion and fluidly coupled to the inner lumen of the cutting tube, the aspiration pump being a linear peristaltic pump comprising a central camshaft extending longitudinally through a symmetrical double chamber pumping manifold , the central camshaft having a rotational axis that is coaxially aligned with a longitudinal axis of the distal, disposable portion; and a cutting tube drive mechanism configured to oscillate the cutting tube, wherein, in use, the device is configured to aspirate material into the inner lumen; and the proximal, reusable portion configured to remain outside of the eye, the proximal, reusable portion comprising: an aspiration pump motor configured to drive the aspiration pump; and a coupler for releaseably operatively coupling the pump motor to the aspiration pump. an aspiration pump motor configured to drive the aspiration pump; and a coupler for releaseably operatively coupling the pump motor to the aspiration pump. <EOS>