That's typical of what happens when blood sugar begins normalizing from high numbers.
I wear progressives, and when my blood sugar went off the rails, I could see distance without glasses, and my reading was okay. When my blood sugar started coming down, my distance got so I needed glasses but not the ones I had been wearing! My reading became difficult, and the only thing was was in focus was someone's face if I was looking out the reading portion of my glasses. It was a wild ride.
I recall going for my first mini-hike and thinking all the wooziness was blood sugar issues, and that could've been a part of it, but the other was that nothing was in focus!
It took several weeks for things to get somewhat manageable, and maybe 6 weeks before they went back to normal.
Whatever you do, don't get new glasses for a while!