My Grandmother told me that they eyes of the potatoes are poisonous and I shouldn’t eat them, is this true?

The answer to this question is short and very simple...no!  The eyes of the potatoes  are just the roots growing out of the potato and they are completely harmless. I went online and found a fun clip from the Rachel Ray show where she discussing what she learned from the Idaho Potato Board on this topic.  You might find this video fun and educational.