Can Herbs Change Colour of the Eyes?

I'm not sure to whom this is going, but I'm going to ask anyway, regardless of how stupid it sounds(even in my head!). Is it possible to alter/lighten one's eye color naturally, through, say, eating a certain herb or drinking a special herb blend? I know it sounds dumb, but I would appreciate an answer one way or the other.

No. Herbs and food do not affect the colour of the iris.