Can you give me  quotes and a big analysis on why Sight and Blindness is important in Oedipus Rex

 

Sight and Blindness References to eyesight and vision, both literal and metaphorical, are very frequent in all three of the Theban plays. Quite often, the image of clear vision is used as a metaphor for knowledge and insight. In fact, this metaphor is so much a part of the Greek way of thinking that it is almost not a metaphor at all, just as in modern English: to say "I see the truth" or "I see the way things are" is a perfectly ordinary use of language. However, the references to eyesight and insight in these plays form a meaningful pattern in combination with the references to literal and metaphorical blindness. Oedipus is famed for his clear- sightedness and quick comprehension, but he discovers that he has been blind to the truth for many years, and then he blinds himself so as not to have to look on his own children/siblings. Creon is prone to a similar blindness to the truth in Antigone. Though blind, the aging Oedipus finally acquires a limited prophetic vision. Tiresias is blind, yet he sees farther than others. Overall, the plays seem to say that human beings can demonstrate remarkable powers of intellectual penetration and insight, and that they have a great capacity for knowledge, but that even the smartest human being is liable to error, that the human capability for knowledge is ultimately quite limited and unreliable.