King Lear major essay - Blindness

This is the assignment:

Shakespeare was obsessed with the concept of appearance vs. reality. Blindness is a an over-arching motif in King Lear. Choose at least three characters who demonstrate some kind of blindness, and examine how they are blind, why they are blind, and to what degree they learn to see. Support all assertions using textual evidence.

These are some of my rough ideas, please tell me what you think...or add to them if you can!

King Lear:

-hes blind because he can't see people for who they really are. ex. Banished his loyal daughter Cordelia and let his two daughters corrupt his mind which killed him.

-also hes blind since he banished Kent, but Lear can be very stubborn
-He is blind because he likes to be flattered and can be tricked into thinking things that are not very true
-He finds out that his blindness caused him to go mad when his sisters locked him out of the castle when it was storming

Gloucester:

-Hes blind because he couldn't realize that Edmund was the true traitor and Edgar was the loyal son.
-he wanted to kill Edgar (edmund blinded him)
-He finds out that he was blinded when he got his eyes poked out

I only have two characters right as of now.

My mother tell that essay with me when I ask her to give an idea to me about essay. I don't even forget that King Lear's major fault was his need for flattery and the banishment of his honest daughter in favor of his other two dishonest daughters. The nature of the original conflict within the relationships of certain characters caused Lear to be slanting and sometimes predictable in his actions.

Cordelia demonstrates blindness, maybe not by being blind to something but by showing other people's blindness in contrast against a sort of wisdom she had. Thinking about Cordelia as one kind of blindness and the villains... like Edmund, as having a different kind of blindness. I think you could actually analyze any characters you want to analyze, and make sure you explain their traits in terms of blindness and clarity. All characters have one kind of blindness or another. The key to getting through this assignment is to have well-developed ideas about the meanings associated with "blindness."