Abstract
ULTRASONIC therapy for Meniere's disease has now been in use for 17 years. Considerable developments have taken place and much has been learned of its mode of action, its hazards, and its value. It is indicated when there is useful residual hearing; otherwise surgical labyrinthectomy is recommended. My personal experience covers the last ten years and I have employed it in 415 operations. Originally designed for purely destructive purposes, it is now thought to exert also some beneficial action on the hydrodynamics of the endolymphatic system. Before reporting the results that have been obtained, our latest equipment and method of application and dosage will be described briefly. <h3>Principles of Method</h3> The principle of the method depends upon the selective destructive action of ultrasound upon the hair cells of the cristae and maculae, while causing relatively little damage to the organ of Corti or the supporting bone, fibrous, and vascular tissues.
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