U.S. soldiers using Microsoft Corp's new goggles in their latest field test suffered "mission-affecting physical impairments," including headaches, eyestrain, and nausea, as per Pentagon's testing office. More than 80% of those who experienced discomfort had symptoms after less than three hours of using the customized version of Microsoft's HoloLens goggles, Nickolas Guertin, director of Operation Test and Evaluation, said. He also found that the system struggled with multiple failures of essential functions. They outlined the problems found in the testing in May and June in a 79-page report. He recommended that the Army "prioritize improvements" before widespread deployment to reduce the "physical discomfort of users." He also sought improvements to the goggle's low-light sensors, display clarity, field of vision, and poor reliability of some essential functions. The latest model's reliability has improved in the meantime between failures that render the system inoperable. Leade...