Importance of Photoelectronystagmography for Clinical Study of the Vestibular Function

摘要

A photoelectric nystagmograph containing a flexible doubled glass fiber light guide was designed and tested. During electric stimulation of the vestibular analyzer a graphic recording of galvanic nystagmus was obtained. The use of flexible glass fiber guides for the connection of the patient with a light source and photoreceiver solves some methodical problems and allows the usage of powerful lighting and high fidelity photomultiplier. The usage of DC amplifiers while signal processing assures the elimination of the most important factors leading to errors in the evaluation of information during nystagmographic investigations.