Your balance is essentially controlled by the interaction of: 1) your cerebellum (through the inner ears), 2) muscles (especially foot muscles), and 3) vision. If your AN destroys one inner ear your cerebellum gets useful information from your good ear, but gets bogus information from your compromised inner ear. Thus, it is difficult to keep your balance when you walk on uneven ground in the dark as most of us have experienced. But if you can “reset” your cerebellum and at the same time retrain your feet to walk more solidly you can regain most of your balance.
I had a 15mm vestibular schwannoma in 2001 that destroyed my left inner ear when it crushed the 8th cranial nerve and blood supply to the left inner ear. I was falling all of the time and in the dark I didn’t even know I was falling until I hit the ground (or whatever I landed on). After a few months of that I decided to retrain my cerebellum using specific exercises to retrain each of the three semicircular canals in the inner ear—it worked!. It took about two months doing the exercises once or twice a day to reset my cerebellum. After that once a week was sufficient and now, 17 years later, once ever month or two does the job. Your daily/weekly/monthly need for these exercises will depend on how compromised your balance is, but you can figure it out.
If you want to use these exercises to improve your balance click on the following link for instructions and a video: