The Tell-Tale Heart - Critical Analysis

Imagine the sight of an old man's eye, vulturous, pale blue, with a film covering it. Could this drive one's self so insane that one would murder a man because of it? This is the event that occurs in Edgar Allen Poe's vivid tale "The Tell-Tale Heart", from the book Designs For Reading: Short Stories.
Every night at precisely midnight, the narrator, who remains nameless and sexless, but for the sake of this essay I will refer to as he, ventured into the old man's room without making a sound, to observe the very eye at which the sight of made his blood run cold. The old man did not suspect a…