Nintendo Wii game controllers 'may help diagnose eye disorder in kids'

Washington, Fri, 09 Mar 2012 ANI

Washington, Mar 9 (ANI): Scientists have developed a low-cost digital head posture measuring device with Nintendo Wiimotes to help diagnose a medical condition called ocular torticollis.


In ocular torticollis, abnormal head position is caused in kids due to eye diseases.


"Torticollis occurs in about 1.3 percent of children," Jeong-Min Hwang, the study author from Seoul National University College of Medicine, said.


"Accurate measurement of the angle of the abnormal head position is crucial for evaluating disease progression and determining treatment or surgical plans in parties with ocular torticollis," Hwang said.


Hwang and his colleagues pointed out that in clinical practice where it can be difficult to get reliable data from children whose heads move constantly, a digital head posture measuring systems using electronic devices such as the motion tracking capability offered by Wiimotes would be an ideal alternative.


The researchers used two Wii controllers to develop an infrared optical head tracker (IOHT) that automatically measures and records the angle of the head in real-time.


The remotes were connected to a monitoring computer with an infrared camera and Bluetooth connectivity. The IOHT was evaluated for accuracy, validity and reliability by comparing it with the CROM device, one of the most widely used head posture measuring devices in hospitals.


Results demonstrated that in measuring the head posture of normal adult subjects, the measurement of the one-dimensional and three-dimensional (3-D) positions of a human head with IOHT were very close to those of CROM.


There were slightly more deviations of measurements between IOHT and CROM than the researchers expected in 3-D movement of the head, which the researchers contribute to the structural nature of CROM rather than inaccurate measurement of IOHT.


The study has been published in Investigative Ophthalmology and Visual Science. (ANI)


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