@blueveinedthrobber,
I have glaucoma in one eye and pre in the other. You're talking to someone with six eye surgeries. I have had threads on it on a2k, me, whining woman yelling or explaining. You can research the threads, and who would want to, not even me.
While docs over time worked out what worked, last time I counted, I took, over time, nineteen kinds of drops, last I counted. But, my situation is unusual. With good googoo, you'll be set quickly.
My ex has had glaucoma since the eighties, and he's fine.
Glaucoma varies though, so you need to look into it.
The main drops cost me $130. per prescription for years (I had insurance but high deductible) and that was part of my financial demise, and years later, was, after medicare and medicaid, something like $2.50 per vial.
I have optic nerve damage too, have had for a long time.
The question is, is yours progressing.
Question all you can, look up all the refs you can.
J