LXXX Photoelectric Nystagmography

The standardization of vestibular examination is still far from being accomplished. Not only are there various schools of thought but almost each individual examiner employs different methods to perform the tests, the caloric one in particular. The usual cause of the numerous errors and one of the greatest hindrances to the proper standardization of the procedures can be found in the fact that the nystagmus, with all its characteristics, is a phenomenon very difficult to observe and analyze. And even the determination of the starting and stopping time of a reactive nystagmus following calorization is not simple.

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