System (110) operative, having a feedback control for pneumatic actuators, comprising: a source of pneumatic pressure a device (112) vitrectomy cut having a cutting mechanism, a first hole pneumatic input (212) and a second input port tire (214) an actuator (204) configured to alternate tire pneumatic pressure to the first and second input ports of tires, based on signals received from operating a controller (216) a first pressure transducer (206) positioned and configured to measure the actual pressure (p1) in the first hole pneumatic input (212) one second pressure transducer (208) positioned and configured to detect the actual pressure (p0) in the second opening pneumatic input (214) the controller (216) in communication with the first and second pressure transducers (206, 208) and the actuator (204) tire, the controller configured to measure actual time (t1), in which the actual measured pressure (p1 ) of the first pressure transducer (206) is above a threshold stored minimum pressure (P1), and being further configured to change the time of actuation of the actuator (204) tire, based on the comparison of real time, in that measuring the actual pressure of the first pressure transducer is above the minimum threshold pressure, with a desired (T1) time, which is desired to measure the actual pressure is above the minimum threshold pressure.Sistema (110) quirúrgico, que presenta un control de retroalimentación para accionadores neumáticos, que comprende: una fuente de presión neumática un dispositivo (112) de corte de vitrectomía que presenta un mecanismo de corte, un primer orificio de entrada neumático (212) y un segundo orificio de entrada neumático (214) un accionador (204) neumático configurado para alternar la presión neumática hacia el primer y segundo orificios de entrada neumáticos, basándose en unas señales de funcionamiento recibidas desde un controlador (216) un primer transductor de presión (206) colocado y configurado para medir la presión real (p1) en
