“あま” の聴器

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タイトル別名
  • The Ear of Ama
  • アマ ノ チョウキ

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Ama is a professional sea-diving woman for fishing and her occupational disease has been reported in some localities of her body, especially in the ear.<BR>This report was compiled as a result of the otological examination of Ama at Hekura Island in Ishikawa Prefecture. The number of Ama interviewed was 40, The results were as follows:<BR>1) Ages ranged from 15 to 58, all of them female.<BR>2) The main complaints in the auditory organ were otalzia, blockade of the ear and tinnitus, but deafness in few subjects.<BR>3) The abnormal view of eardrums was found 75% by the otological examination, most of which showed sinking, turbidness or roughness.Especially we found the exostosis in external ear canal in 7 Ama.<BR>4) The resulting loss of hearing was indicated in half of them, whose type was generally sensorineural deafness and increased with ages.<BR>5) In almost all, the inflation of the auditory tube was good.<BR>6) Ama are considered to indicate that all these symptoms were caused by external agents in the sea, namely the water pressure equilibration of the ear during diving.

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