It is the intent of this paper to draw attention to round window tears with the inherent symptomatology that has, for the first time, been documented in two aircrew members. It is also felt important to emphasize that the condition, regardless of etiology, could be catastrophic to the flying pilot and may be an up-recognized cause of otherwise unexplainable accidents. Not all cases of window tears cause vertigo-but some do. Not all vertigo so caused is prostrating--but some is. Because of the findings in two reported cases, it is postulated that round window membrane tear may be a significant cause of pilot disorientation. It may have been the root cause of peculiar and previously unexplained air crashes. The corollary of this hypothesis is the proposition that, in the future, careful attention be paid to the ears of pilots recovered from what would otherwise appear to be a mysterious accident.
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