Surgeons routinely snake endoscopes through tiny incisions in patients to perform life-saving procedures. But using one is like operating with one eye closed - its single camera offers no depth perception. The Viking 3DHD endoscope carries two cameras to provide a "left eye/right eye" feed. A monitor projects both images, which the surgeon's 3D eyewear combines into a single image with depth-of-field. Surgeons say the system makes it easier to dissect, grasp and suture, and clinical trials show that it reduces surgery times by 38 percent.