This may not help, but I lost all balance in one ear after an operation in that ear. It took about a month or so for my balance to come back but it did. My ENT told me that you only need one ear for balance. I play tennis and have no balance issues at all with just one ear for balance. if you r having balance issues still, I would ask an ENT if the ear with SSHL could be eliminated from balance contribution. Sounds extreme, but worth asking.