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通过对15名平均年龄为9.7岁的双侧感音神经性聋的儿童,单耳佩戴助听器6年后双耳听力变化的观察,作者们发现在第一年中,佩戴耳的所有500～4000赫的言语音频听觉平均提高2～3分贝,在以后的岁月中听力基本保持在这一水平。而另一侧耳的听力,在第一年中,平均下降2～3分贝,以后也保持在这一水平。上述发现与作者们于1976、1978年的观察结果相似。此项研究结果支持配戴助听器可增进耳聋患者听力的论点。但这些儿童中的多数仅在学期中每日佩戴3～4小时,如平时戴用时间增加,则可能产生
Through the observation of 15 children with bilateral sensorineural deafness with a mean age of 9.7 years and hearing aids with hearing aids worn by each ear after 6 years, the authors found that in the first year, all 500 ~ 4000 He’s speech and audio hearing average increase of 2 to 3 dB, in the years after the basic hearing remained at this level. The other side of the ear hearing, in the first year, an average drop of 2 to 3 dB, and later maintained at this level. The above findings are similar to the authors’ observations in 1976 and 1978. The findings support the argument that wearing hearing aids improves hearing in deaf patients. However, most of these children only wear 3 to 4 hours daily during the semester. If the wearing time is increased, it may occur