Hi Riding,
I have had 38 weeks of vision therapy. It has helped with my convergence issues.

As for dizziness and balance not so much. I do not see double as often, not much blurry vision anymore.

The Doctor has just upped my prism prescription and changed the way the prism is facing in my glasses. So I have one prism facing inside and the other outside in the lenses. That has helped me feel more stable when walking. I think I walk straighter than I did.

Still have another ten weeks to go so hopefully there will be more improvement.