THE STUDY of the auditory acuity of deaf children based on new ideas and methods of otologic research has brought out different and interesting phases which are of scientific and pedagogic interest.
It has given valuable information as to the characteristics of the residual hearing, and it has also suggested many possibilities of greater usefulness of the remnants of hearing.
The problems of deafness—in a secondary position for so many years—are now, in the last two decades, being studied by a large body of specialists; this is to be atributed in great part to new developments of the physics of sound. Increasing interest in this subject is noticed in scientific and clinical investigations. These have within their scope such problems as the recognition of new etiologic factors and the diagnosis, the prevention and, finally, the treatment of diseases of the ear. Adequate methods of instruction, auricular prosthesis and rational therapeutics
LACERDA AP, VERVLOET AE. AUDIOMETRIC STUDIES OF THE RESIDUAL HEARING OF PUPILS OF RIO DE JANEIRO NATIONAL INSTITUTE FOR THE DEAF: I. Auditory Acuity of Deaf Children. Arch Otolaryngol. 1948;47(3):239–263. doi:10.1001/archotol.1948.00690030249001
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