only in disney. in the original book he has steel-gray eyes to kinda emphsize his ruthlessness. <- also, he's not ruthless in disney, so they changed the eyes.
also, I think Draco Malfoy has grey eyes, doesn't he?
I have something very important to tell you.
But now I forgot what it was.
Maybe I'll remember later. who knows.
If I will, I'll be sure to write it. So..... Yeah.
Dismissed. Carry on.