Grayson Clamp News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Most of us, of course, don't remember the first time we heard a sound, none of us do. it's impossible because it happens in the womb but grayson clamp was worn totally deaf and will never forget that moment captured on tape. >> daddy loves you, daddy loves you. >> incredible moment, of usually for grayson and his family. he was born without the nerves needed to process and hear sound. he's the first child in the united states to get what's called an auditory brain steam implant, being studied in clinical trials. he had the surgery in april in north carolina. joining me is dr. sanjay gupta.

>> reporter: 3-year-old grayson clamp was back at his doctor's office today for a checkup. grayson was born with a host of medical issues, open-heart surgery as an infant, vision loss in one eye and no auditory nerves in either ear. but about four weeks ago, after a groundbreaking surgery, little grayson heard his dad's voice for the very first time. >> daddy loves you. daddy loves you. daddy. >> yes! he heard! >> can you hear daddy? >> reporter: mom nicole was shooting the video. >> when they turned that thing on and it worked, he responded to that sound, it was like just a weight was lifted ...

>> this next story is really incredible. a 3-year-old boy, hearing his father's voice for the very first time in his life. that's why it is our "favorite story of the day." >> after undergoing experimental procedure, the hearing impaired toddler has a remarkable moment all captured on tape. abc's david muir has the story. >> reporter: this is the moment so many people are talking about, grayson clamp, 3 years old had never heard his father before. >> grayson. >> talk to him, daddy. >> daddy loves you. daddy loves you. >> reporter: grayson points his finger there hearing sound for the first tim...

In grayson clamp's brain which now helps him process sounds. his mom says he's still getting the hang of it. >> we don't really know exactly what it's like for him. we don't know exactly what he hears, if he hears everything we hear, some of what we hear. his brain is still trying to organize itself to use sound. >> it's amazing. grayson's family is now working with him so he can learn how to interpret the sounds he's now hearing. a pool party reportedly leaves one man in a coma and sickens several others. organizers of a pool party in mexico had poured liquid nitrogen in the water. the liqu...