I think what the parent is trying to say is that we have studies that show how myopia can be induced. I think EndMyopia gives examples in baby chickens or some such. But I’ve yet personally not come across a vetted study that shows reversal of myopia. And I support EndMyopia/Hormesis Theory as I’ve applied some of the ideas to help my one weaker eye get a bit sharper over time.
I understand there’s an industry that wants to be paid for prescription glasses and lenses and whatnot, and that can throw a wrench and it does into the whole thing - see the Sugar vs Fat vs Whatever industry battle. But a little would go a long way.
I only checked your first article, and you're not wrong that axial length change was observed in humans. But it makes the opposite point of what you hope. The myopic eyes only grew longer when subjected to any type of blur.
"In addition, in myopes, calculated defocus caused longer eyes (+8.4 ± 9.0 µm, P = 0.001). Strikingly, myopic eyes became also longer with positive defocus (+9.1 ± 11.2 µm, P = 0.02)."
Please check out the other articles too or read some more of that article - they point out that their findings are not the norm and speculate as to why that could be. I suspect it's because they used too much defocus (you wouldn't be able to read anything with the amount of defocus they're using, so completely impractical for real life) - that has led to axial elongation in many other studies too.
The main thing, axial length reduction through undercorrection, has been shown in plenty of animals and humans.