A Fully Implantable Device Is Poised to Change the World of Hearing Loss — But Is it Worth the Risks That are Associated With the Required Surgery?

Hearing aids help millions of people, but many resist them because they think wearing one carries a social stigma. Hearing aids also have serious lifestyle limitations: the hearing impaired can’t wear them while showering or swimming, and most models are hard to wear while sleeping. Now, a new kind of hearing aid that aims to overcome these problems is in clinical trials. It’s invisible and waterproof because all of its circuitry — including its battery and microphone — is in the user’s head.
Technology Review