CHARLESTON, SC (WCSC) - For the third time since his surgery, Keller has returned to MUSC for visual reinforcement audiometry.
"When they hear the sound they turn their head and they learn that when they hear the sound, they turn their head. Then the toy comes on," said Pediatric Audiologist Meredith Edgerton.
The toy test helps doctors determine how well he can hear with his implants.
"We are going to try and condition him to turn to the direction of the loud sound."
This process takes plenty of patience. For both Keller and his mom. But she definitely has noticed a huge difference at home.
"The fact that you can turn the television on and he will turn instantly. Or put the washing machine on and he'll jolt, it's a great feeling."
To hear Keller will be need to wear these implants for the rest of his life.
"He puts the on at 6am and keeps them on all day except for nap time."
"So we still stay at a pretty high level until we see some consistency with his responses. We'll actually make the sound softer until we find the softest sound he can respond to."
Doctors expect Keller's hearing to improve over the next year.