Evaluation of hearing aid function among students of Rudaki deaf school in Ahvaz city

Abstract

Suitable hearing amplification in hearing- impaired students is essential to improve learning process. The main purpose of this ( a descriptive- analytic and a cross-sectional) study is to access to the exact statistical data of hearing aids and ear molds, the onset age of hard of hearing and the age of receiving hearing aids in hearingimpaired students of Ahvaz Rudaki deaf school. Furthermore, the researchers questioned the parents to find out the probable causes of hearing aid non-usage. In this investigation the researchers evaluated hearing aids, ear molds and the usefulness of hearing aids of the all students at Ahvaz Rudaki deaf school. Out of a total number of 66 students, 48 students (sixty-two hearing aids) were evaluated. Totally 21 hearing aids (33.8 percent) and 22 ear molds (35.48 percent) had problems. In defective hearing aids, hearing aid sound offset (52.38%) was the major problem. There was a statistical difference in hearing threshold, before and after using a hearing aid (p