Thanks, I'll ask about that at his next visit.
Have you tried Autologous ( Blood serum ) eye drops...? Check into them.
They are drops that are made from your own dogs, or a donor dogs blood.
They worked well for my Yorkie, but, we had to discontinue, because the donor dogs owner decided to stop donating.
Anyway,
Ask the vet school about them.
As far as the surgeries go, check in often, as other members who have knowledge of, or experience with the surgeries may reply.
Best Wishes,
Connie