Built into a pair of glasses, the newly FDA-cleared Knee+ system uses a camera to help judge the alignment of instruments and the knee joint itself within the surgeon’s field of view, without requiring them to change their surgical technique.Instead, the French developer relies on a series of braces labeled with QR codes that can be read by the camera and tracked in a three-dimensional space.
Source: FDA clears augmented reality smartglasses for guiding knee replacement surgeries | FierceBiotech