Bear with me since this is my first post (also hi)
ive just been rereading Rhythm of war and its occurred to me that how the spren treat the deadeyes is similar to how the ardents treat the damaged soldiers. So maybe (although maya definitely has a bond with Adolin) all the deadeyes need to recover is to take a bit of time out with sane people. Sorry if this has been mentioned before or badly phrased, no one I know reads that much