I don't tend to use the term "fixed," to describe getting CIs -- as I don't see that it changed the simple fact that she's deaf and can't hear without the aid of technology. I guess you could say that wearing glass or contacts may "fix" your vision in that they make it possible to see clearly or better than before, but glasses don't fix your eyesight. A CI might "fix" someone in the sense that it uses another pathway to the auditory nerve, bypassing that which is damaged or not working making it possible to access sounds to some degree. But it doesn't fix your hearing.
And at the end of the day, or when you are about to swim, you can put both the glasses/contacts and the processors on the side table and see and hear just as before, nothing "fixed."