Things have changed, since I posted that.
Most of those changes have been in my head.
First off, a week after changing to the new prismatic-lensed glasses, I accidentally picked up my old glasses and put them on one morning... and it was BLISSFUL.
I felt RELIEF.
That was when I realized that there was a lot of stuff going on in my head that had nothing to do with the actual physical condition of my eyes.
The prismatic lenses in my new glasses were just weird. I realized that I never got used to them, and having my vision be "odd" all the time, was deeply tiring/unsettling.
When I switched back to my old glasses - with the too-weak, too-old prescription - I felt RELIEF. I relaxed. I re-evaluated my ACTUAL ABILITY TO SEE, and didn't think about my initial diagnosis of Keratoconus, and instead... just looked out my actual eyes, at my surroundings, and thought, "hey... that's not so bad."
I went back to my eye doctor and told her how relieving it was to put on my old glasses, and told her about the diagnosis.
She suggested I stick with my old glasses now. Then go see the specialist to get the Keratoconus diagnosis confirmed/denied. Then, see what course of treatment the doc suggests.
At that point - less than 90 days from when I got my new glasses - we can decide how to proceed with my new glasses. Stick with them? Change the prescription? And even possibly change to hard contact lenses. (One possible solution to Keratoconus, that works for some people.)
I still have blurry/weird vision in my right eye. But my left eye has become dominant, so I don't even notice the right eye blur anymore. My old glasses are not the perfect prescription, but they are fine for everyday use.
So I am in a MUCH better place, right now. This holding pattern kinda works for me... for the time being...