Depending on the seriousness of the birth defect, doctors may or may not be able to reverse the hearing impairment. These individuals are the ones who cannot listen to any sound below 70 dB and above 95 dB. As we get older the damage we have done to our ears becomes more noticeable, so it is important to take action as soon as possible. People who lack the ability to hear properly can rely on hearing aid or they can go for serenity prime.