"«Light versus Darkness
Knowledge is characterized as a burst of light which contrasts the darkness of ignorance.
At the beginning of the play, and towards the fourth episode, we notice the "darkness", the lack of knowledge that Oedipus has toward mostly everything that is surrounding him.
When Oedipus learns the truth, it "bursts" into light. The metaphor of light represents truth and knowledge.
"«Sight versus Blindness
A reference to this metaphor occurs early in the play, when Oedipus falsely accuses Tiresias and Creon of conspiracy. "So this is what he wants, Creon the loy…