The Visualase Thermal Therapy System is FDA-cleared for thermal destruction of soft tissue in neurosurgery under MRI guidance. The device combines 3 previously FDA-cleared devices: the Visualase Cooled Laser Application System, which delivers the laser (energy) to the tumor tissue; the PhoTex , Diode Laser Series, which is the laser itself; and the Visualase ENVISION Workstation, which is the computer system that helps the surgeon plan and monitor your treatment.