在未作出诊断的听力障碍的病人中,只有20％可作手术,获得满意效果的只有10％。90％的病人靠配助听器解决问题。一般说,85％宜配耳级助听器,只15％需配佩戴式助听器。从1943～1944以来,小儿用双耳助听器者较多,在欧洲成人仅30％用双耳助听器,这和经济有关,但更重要的是病人不乐于接受双耳助听器。病人和医生忘了用两个助听器时可降低每个助听器的声放大率,且可建立定向听 Only 20% of patients who have not been diagnosed with hearing problems are able to undergo surgery and only 10% receive satisfactory results. 90% of patients rely on hearing aids to solve the problem. In general, 85% should be equipped with hearing aids, only 15% need to wear a hearing aid. Since 1943 ~ 1944, there are more children with binaural hearing aids, and in Europe only 30% of adults use binaural hearing aids. This is economically relevant, but more importantly, patients are unwilling to receive binaural hearing aids. Patients and doctors forget to use two hearing aids to reduce the acoustic amplification of each hearing aid and to establish directional hearing