Nintendo Wii remotes have been used to assess and diagnose children suffering from an eye disease, ocular torticollis, which causes involuntary head tilting.
Researchers from the Seoul National University College of Medicine used two Wii remotes to construct an infrared optical head tracker. When connected to a monitoring computer, the tracker automatically measures and records three-dimensional data about head position and angle. In clinical practice, the device would make it much easier – and cheaper – to get reliable diagnostic data from children whose heads move constantly.
Read more at Seoul National University