Abstract
Nystagmus measurement is quite useful and popular for equilibrium function test. To measure it, several kinds of methods. for example, Electro-Nystagmography(ENG, orEOG) are developed and clinically used. But they have some problems. To solve those problems, such as the drift or noise on the output signal, or the improper restriction of the free movement of the subject's body and eyeball, we propose the following new measuring method. We adopted the magnetic measuring method, and constructed a prototype system. In this system, a set of magnetic sensors detects magnetic flux density of the magnetic contact lens. worn on the eyeball of the subject And using this system, we confirm the availability of this system.