sight in oedipus rex

Tragic Irony is when the audience knows of a characters situation while the character is still unaware of what going on and the characters words carry a significance they are not aware of. the concept of "sight" helps to enhance the tragic irony in Oedipus Rex by Oedipus is often blind to what is going on around him although the audience/reader can see perfectly what is happening. Oedipus is blind to the fact that he vowed to avenge for Liaus' murder although he himself is the murderer. Oedipus also makes himself physically blind as he gauges out his own eyes so that he will not have to see his siblings/children. you also see the concept of sight with Theresias. Although he is physically blind he can see more then anyone with his prohpetic visions. however, Oedipus chooses to ignore them. all these examples of sight in the story show how the reader or audience often knows what is going on however, the character is in the dark.