Honestly speaking I am not sure if they will find a cure. Of course I want to hope.
My T was never an ear issue. I never had T until I had a very stressful situation.
I think the brain theory is correct: Overacting neurons in the brain make the sound.
When I take a benzo, the volume goes down to nearly quiet.
So this confirms my brain is doing something it should not do.
How do you want to fix that?
Therefore, the only way out of this is habituation.
If you don't think yours is an ear issue it may be somatic induced (muscle). I never had T until I had a very stressful situation also, but I had that stressful situation in response to an adverse reaction to a poison / medication.
Some T can be caused by muscles of the head/face, neck, or mid/upper back. If you notice any chronic muscle pain at all that is an indication. That may be base of the skull pain, temple pain, jaw pain.
I developed orofacial pain and/or TMJ dysfunction at the same time my T started. Before that I just had chronic pain at the base of the skull. This was likely caused by trigger points in the lower trapezius (between the shoulder blades). At the time I was concerned with the neck pain and didn't know anything about trigger points.
I have serious doubts that all of my T is caused by trigger points or my jaw, but one of the sounds may be. I have about three in each ear. The ENT didn't do any tests except look in my ear with that device and I had a hearing test because I requested that when I scheduled.
Thankfully my hearing is good as I was able to hear most sounds at 0 db, which is considered the lowest for normal hearing. I however seem to have super human hearing in my environment all my life and hear things very quiet and far away.
Right now I'm trying to treat my right side jaw pain to see if it will fix the right side loudest noise. When I press on my masseter muscle that hurts chronically I get a hissing noise that lasts a while in my right ear. I have been unable to get my TMJ issue fixed and that masseter muscle pain never goes away with massage. I did however discover that trigger points in the SCM can trigger a trigger point in the masseter muscle.
I recently found a spot high up on my SCM muscle that when pressed just right will cause a pain referal to my jaw area. I'm hoping that with enough work I may be able to get rid of this SCM trigger point and then maybe the masseter trigger point will go away which may be causing the louder right side tinnitus.