Butter I was prescribed the filter of Upsilon Omega, Mu Upsilon and Theta
If it's not a hassle, it might be interesting to see these colors (e.g. a photo). I have Upsilon Omega D myself for headaches. I did a brief syntonics program a few years ago and I didn't have a whole lot of luck.
I wonder if Dr. Julie is familiar with "our problem". Did you see her in person? How often do you meet with her?
For what it is worth, the syntonics glasses themselves cost like $20 USD a piece. I totally get you are paying for the specialists expert opinion...but >$3k is just crazy. If it works though, I'd pay it.
Butter convergence insufficiency and slight hypertropia. Tried many solutions including vision therapy, plus lenses, prism lenses, different monitors.
Plus lenses could make convergence insufficiency worse (but might help with the accommodative issues you mention).
@ensete I seem to recall you might have tried syntonics?