Short contributions to aural surgery / by Sir William B. Dalby.

  • William Bartlett Dalby
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Short contributions to aural surgery / by Sir William B. Dalby. Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

    62/180 page 46
    ]So. YII.—ON THE LOSS OF HEAEING POWEE WITHOUT PERCEPTIBLE LOCAL CHANGE. August 11, 1877. In tlie examples alluded to in the following remarks I presuppose tliat the conduction of sound to the labyrinth is perfect—in other words, that the external ear, the tympanum, and the Eustachian tubes are in each case in a condition of health. A lady, who some few years ago was under my observation, went to India to join her husband, and, upon landing, was driven to the house where he had suddenly died a few hours before her arrival. Walking into the house with good hearing, she came out of the room in which her husband lay dead, stone-deaf. In the course of six months she recovered some slight degree of hearing power, but never improved beyond a point which made a clearly articulated word spoken loudly close to either ear audible. A young lady whom I saw in the present year became the subject of a similarly sudden loss of hearing, though in a less degree, upon receiving intelligence of the death of her father. She never afterwards noticeably improved. That emotional causes exercise a very decided influence on the function of hearing cannot fail to be observed by those who are in the habit of paying attention to affections of the ear. Prolonged anxiety and mental strain, however directed, are
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