Hello Doctor.
My cousin who is 25 years old is deaf and dumb by birth.Even his sister who is 28 years old is the same.Recently i saw an episode in discovery channel where a doctor in some foreign country performed an operation on an old lady to aid her in hearing.It was not coechlar treatment but something else where he implanted tiny hair like sensors inside her ear to aid her hear. Is it possible if you could guide me in this matter. I am from Siliguri(West Bengal)