Why did Shouko use hearing aids even though she's deaf? In Koe no Katachi, Shouko Nishimiya uses hearing aids. She's deaf, so can she actually hear something or not? I have read the manga but didn't watch the movie, so I haven't seen any clue about why she is using hearing aids. For what purposes did she use hearing aids in the first place?
Shouko uses hearing aids because she's deaf. They're meant to assist anyone with hearing loss of specific kinds to allow them to better identify sounds.

If you're looking for a clue, in the first chapter of her introduction, she plainly tells the classroom that she's deaf.



Picture taken from Chapter 1 of Koe no Katachi, available for free from Crunchyroll.