I never did eyes before foundation. When I was in class, my teacher would kill us if we dared, this is the order we were taught:
Moisturize/Hydrate
Color correction and concealing
Foundation
(if need, specially around the eye area for people with very dark circles, we would add a little bit of concealer if necessary)
Powder
Eyes
Lashes
Brows
Contour (if necessary)
Cheeks
Lips
We would use powder to protect the under eye area in the beginning, but later on (unless we were doing something that involved Star Powder in black per example) she would discourage us from doing so, specially if working with mature skin.
@Marty - I love "in my kit", he loves MUFE stuff as much as I do, it's refreshing since in Portugal, some of my options are limited. Thanks for posting the link, I lost it and forgot the name.