He chose to utilize it while performing a thoracic surgery. Theodore first loaded the Glass with data including CT scans, x-rays, and then used it to compare the scans with the live action. He states that it allowed him to easily check the data in order to improve the surgery without turning away from the patient. Eventually, he suggested, Glass could reduce the number of surgeries that turn out badly, because it gives surgeons access to data they need without taking away from their concentration. Theodore also used Glass to film the entire procedure for later viewing.