In need of help with a Thesis about Oedipus the King

I have to write a 4-6 page essay about how Sophocles metaphorically uses vision

I always have a hard time with the thesis sometimes it's not vague enough to defend it for 4-6 pages sometimes too vague and it's all over the place.

Here's what I have right now:
Blindness exists in all people even if they possess the ability to see, however, some are able to see despite their lack of sight.

that sounds pretty off but that's the jist of what I'm trying to say. How can I change it up or what can I add/take out to make it a stronger and more viable thesis?

I was also planning to uses a quote from the Beatles song Strawberry Fields Forever, "Living is easy with eyes closed, misunderstanding all you see" as a hook for the introductory paragraph. What do you think?

consider to avoiding contraction in formal writing.

Writing a research essay on Oedipus - thesis, analysis and structure

I am writing a research essay on Oedipus and I am having a difficult time with my thesis. I read the play, I also watched a full movie on it. So far, I take it that the author is using Oedipus as an example of how one can damage his/her life living without knowledge of self. Revealing key issues: Truth, pride and humility to convey such message.

Is this a strong enough analysis to write about? How to structure it?

hi Jaedra.. i have some suggestions if you want to write an essay.
firstly, be familiar with the topic given. in general you have to describe the general topic in the first paragraph and make thesis at the end of paragraph one. when you have already written down your thesis, in the next two paragraphs, you have to support your thesis with some data which toughen your thesis, including supporting paragraph or example. The last paragraph you need to make conclusion which shows your thesis is true.

nb: the number of paragraphs depends on your topic.

Thank you ! It's only 3 pages (1,500 words).