Oedipus Rex and Death of a Salesman are two examples of tragedies In these two plays the characters are good but not perfect and Blindness and vision are used as motifs in the play Oedipus Rex which are also their misfortunes are the result of their tragic flaws the tragic flaws of the hero Vision refers to both literal and metaphorical blindness The frequent references to sight light eyes and perception are used throughout the play When Oedipus refuses to believe Tiersias Tiersias responds by