Tiresias's importance in Oedipuce?

Question: Tiresias's importance in Oedipuce!?

Why is tiresias an important character in the play!?
How does he contribute to irony in the play!?

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Best Answer - Chosen by Asker:

He is the person who sets the downfall of Oedipus in motion not once, but TWICE (telling his parents that he would kill his mother and murder his father, and then telling him that he DID those things)

Ironic: He is a "seer" but cannot see!. Later Oedipus is also blind!. Www@QuestionHome@Com