Deafness is the most prevalent sensory system impairment in human, about 70% of genetic deafness belongs to nonsyndromic hearing impairment.

• 摘要耳聋是一种最常见的人类感觉系统缺陷，在已发现的遗传性耳聋中，有70%25的属于非综合征型听力缺损。