Answer:
We need to have the story. But if you look at what he is struggling with closer to the climax or the last thing he struggled with it might help you easier. Sorry I couldn't give you a direct answer but you didn't provide the story.
Explanation:
His mother gave him sight by giving birth to him. He was blind to the truth in his relationship with his wife, Jocasta. After learning the truth, that Jocasta is actually his mother, he takes the golden brooches from her gown and blinds himself. It goes full circle; his mother gives him sight and takes it in the end.