Have you ever tried driving your car with one eye shut?

When I had cataract surgery, I was without the use of my left eye for several days because of an eye patch. I attempted to drive my car in this condition. Big mistake! My visual perception was way off track. It was then that I decided that my wife should do all the driving, until the eye patch came off. Question: how do people with only one eye, drive an automobile safely? In my police career, I have answered many traffic accidents, but not one that involved a person driving with only one eye.