14 DAY TRIAL // The extraordinary moment when a young boy hears his father's voice for the first time, at age three, has been caught on camera.
This is also the first time that Grayson Clamp hears anything, because of a congenital condition. According to CBS, Grayson was not born with cochlear nerves, making it impossible for the auditory signal to travel from his cochlea, which is located in the inner ear to his brain.
When a cochlear implant failed to correct the issue, his parents opted for an auditory brain stem implant.
Grayson is the first patient in the US to be inserted the implant as a child, so the procedure was quite risky.
However, it has paid off, and the expression on his face when he hears for the very first time is priceless.
"He likes sound. [...] He enjoys the stimulus, the input. He's curious, and he definitely enjoys it," mother Nicole Clamp describes.