Even better, see if you can find a specialist who has a GDx or an HRT
machine. These give the specialist a good picture of the optic nerve, and,
with the GDx in particular, help in early diagnosis of glaucoma, earlier
than a visual field test would.
All the best, I know how worrying it is. I was only diagnosed after a year
and a half even though I did have optic nerve damage. So much depends on the
specialist. The ones I saw initially did not have any patients my age (40)
with glaucoma, which is why they were reluctant to diagnose. I'm now with a
great guy who says glaucoma can strike at any age. I wish I'd known about
him at the start, he might have been able to prevent some of the damage
that's been done. At any rate, he would have saved me a lot of worry and
stress.
Good luck, keep searching until you find someone you are comfortable with.

Cheryl