Hi & thank you for your reply! No, my doctors haven't recommended an oncologist, only a neurosurgeon. I just completed an ophthalmology test & they're digesting that info. Its slow going & they don't seem to think anything of it! I guess I just have to wait & see, but I'll discuss an oncologist with them to see what they think. This is all so confusing because I'm trusting others with my care & even i don't understand what the ramifications might be. I'll keep you posted with what I find.