You have my sympathy, although I can offer only unrelated anecdotal evidence. I lost my sense of smell for perhaps two years after getting the mother-of-all sinus infections. I had gone water skiing in a small lake that was running unusually warm that year. Complicating circumstance was the fact I am allergic to most antibiotics. That infection raged for most of a summer, unchecked. Losing the sense of smell is a huge handicap, I had to have my wife sniff food before I put it on the grill to be sure it was OK. I could make out two odors during that time, gasoline, and vanilla, although neither smelled like I remembered them before the infection.
My doctor was of no help. Little by little, I recovered most of it, but, I would guess there is some degree of permanent loss. You can't believe how glad I am to be able to recognize the smell of bad fish or rotting meat, however.
I hope your depth perception makes a comeback. You won't be hitting much while shooting, without it.
Best,
Ted
