Oedipus

Blindness/Sight in “Oedipus the King” is one of the main themes. The author uses physical blindness, as well as blindness in his mind to show Oedipus' place as a tragic hero. In the beginning, Oedipus had great eye-sight. However, he is blind and unaware of the truth about himself and his past. He desperately wants to see, but he cannot. (Irony) Oedipus wants to overcome his blindness and he pursues this goal throughout the story.
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