The Human Ear Canal – III

Ear Canal Length   Most ear canal dimensional measurements relate to the length of the ear canal. However, measurements of the ear canal length are not straightforward because measurement methods vary, especially as to how the distal and proximal boundaries of the ear canal are identified. Additionally, ear canal length provides no information about the…

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Tympanic Membrane and Hearing Aid Fitting III

Two previous blogs related to the behind-the-scene interaction of the tympanic membrane  (TM) to the hearing aid fitting process focused on basic anatomy, especially that related to ear canal length (Part I), and to a better visualization of the TM orientation compared to general artistic renderings (Part II). Part III will draw these issues together…

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