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Electronystagmography: Technical Aspects and Atlas, by Joseph U. Toglia, 160 pp, with illus, $13.50, Springfield, Ill, Thomas, 1976.
Electronystagmography, more correctly electro-oculography, has been related to dizziness the way electrocardiography is related to chest pain. Unfortunately, this comparison is faulty. Electronystagmography is similar to electrocardiography in that electrical impulses generated within the eye can be detected, amplified, and recorded and thereby provide a permanent record of changes in the eye's electrical potential, just as the ECG does with the heart. There the similarity ends. Electronystagmography cannot make a diagnosis, nor is it standardized in recording, interpreting, or reporting. This is partly due to the relatively recent adoption of electronystagmography as a clinical tool, even though the corneoretinal potential has been known and studied for nearly 100 years. This is not to say that electronystagmography is a useless clinical tool. A few years ago, the status of electrocardiography was similar to
Cantrell RW. Manual of Electronystagmography. JAMA. 1977;237(17):1873. doi:10.1001/jama.1977.03270440063032
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