視覚刺激スクリーン内蔵型ビデオ眼振計の開発

概要

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A new video-oculography with miniature displays to provide visual stimulus has been developed. This device enables medical doctors or clinical engineers to easily conduct clinical check-ups for the diagnosis of vertigo caused by vestibular dysfunction or central nervous system disorder. Using the headset developed, it is possible to present virtual visual stimulus images. The headset also has features for measuring the movements of both eyes simultaneously without attaching conventional, unpleasant electrodes to the face. Since the relative geometrical association with each other's coordinates system for measurement and presentation is absolutely fixed inside the headset, there is no limitation to head movement. In order to evaluate the output obtained by the developed system, eye tracking tests and optokinetic nystagmus tests were conducted. Thirty-one participants gave written informed consent. The output waveforms for eye movement compared to a conventional electro-nystagmograph demonstrated the validity of the developed system, which can contribute to time and space savings in clinical diagnosis.
社団法人日本生体医工学会の論文
2004-12-10