First coined in the movie "Hot Shots!", it is a delicate corneal inversion procedure administered in the correction of walleye vision; however, due to the high risk of eye socket damage, it is normally carried out via the rectum.
Jim 'Wash Out' Pfaffenbach: I just got kicked out of the unit. My flight status has been withdrawn. I'm through, Dead Meat!
Pete 'Dead Meat' Thompson: What happened?
Jim 'Wash Out' Pfaffenbach: It's my eyes. I've got walleye-vision.
Pete 'Dead Meat' Thompson: Isn't there something that can be done?
Jim 'Wash Out' Pfaffenbach: Well, there's a delicate corneal inversion procedure... a multioptipupiloptomy. But, in order to keep from damaging the eye sockets, they've got to go in through the rectum. Ain't no man going to take that route with me!