I developed unilateral tinnitus some twenty years ago and now I just have to live with it. Mine was caused by using a PC monitor that was too low for me meaning that my neck erector muscles were in constant tension. Over time the nerve signals through the dorsal cochlear nucleus got mixed with the auditory ones and I am constantly hearing the nerve commands as sounds.
It won’t kill me and I have to live with it but I would love to hear some silence so anything that can be done to preserve hearing is to be encouraged.