MRI machine operators usually question people closely about
possible metal fragments remaining in eyes after accidents;
presumably because MRI can move these metal fragments around.
Wouldn't the same apply to the metal plates installed in "shunt"
glaucoma surgery? --- particularly in "brain" MRI scans?

I started wondering after having lower spine and pelvis MRI's
today.  I did not think to mention my two shunt surgeries, which
was probably just as well.

Thanks for any comments.

John