First of all, because people's hearing impairment varies widely. Take the deafness of the elderly as an example. Different types of deafness, different degrees of hearing impairment, tinnitus, fear of loud voice and auditory discrimination lead to different hearing losses, and different hearing AIDS are needed for different hearing losses. In fact, even with hearing impairment of the same nature and degree, everyone's feelings may be different, and the requirements for hearing AIDS are certainly different.
Secondly, there are many brands and models of hearing AIDS, and professionals can only make choices for very professional problems that users can't solve themselves. For example, how should patients with severe hearing loss who are allergic to strong sounds choose hearing AIDS? Emphasize amplification, they will find the sound unbearable, while emphasize sound compression, which will lead to the signal sound is not true and clear enough. How to solve this contradiction is one of the important tasks of hearing aid fitters. Only when the user's hearing condition is completely consistent with the performance of the selected hearing aid can the best hearing aid effect be achieved.
What will happen if the hearing aid is not fitted by professionals, but casually? Improper wearing of hearing AIDS is harmful and useless. Because everyone's hearing loss is different, what is the demand for hearing compensation? People are different. If you choose an inappropriate hearing aid, you may not be able to provide enough hearing compensation for the hearing loss. What is more noteworthy is that if the sound emitted by the hearing aid is too loud, it may damage the auditory nerve. In view of this, hearing AIDS can only be worn with confidence after being fitted by professionals, and only when they are fitted correctly can their functions be truly brought into play. However, improper use of hearing AIDS is difficult to exert the effect of hearing AIDS, and may also damage the user's residual hearing and cause more deafness.
The Consumer Report of the United States put forward 1 1 suggestions on how consumers choose hearing AIDS, mainly involving how to choose qualified hearing aid shops or fitters, such as requiring fitters to issue qualification certificates and training certificates, and requiring hearing aid shops to provide sales qualifications and service contents. At the same time, it is also suggested to give the new hearing aid a suitable adaptation period, understand the hearing aid knowledge as comprehensively as possible, and accept comprehensive and detailed hearing aid fitting test and evaluation, including real ear test.
Hearing aid fitters and I are new occupations newly recognized by the Ministry of Labor and Personnel, and relevant departments are formulating new vocational education, training and assessment standards. This move will greatly improve China's hearing aid industry and overall level, standardize industry behavior and protect consumers' interests.
Hearing AIDS belong to the second class medical devices, so you must go to a qualified professional hearing service center for fitting! At present, China's hearing aid industry is mixed, and the quality of hearing aid fitting is difficult to guarantee. In the past, some fitting people sold flowers and some clothes. They have not received formal training and education, and can only say that they sell hearing AIDS. Improper wearing of hearing AIDS will not only make users unable to hear clearly, but also may damage their hearing.