Can you tell me if one eye has blurry vision, does that impact depth perception at all, or does one eye have to be totally blind to reduce depth perception?

Usually not: I knew a one eye'd tae kwon do master who could throw a punch at your face and stop within a milimeter of hitting you. There are enough visual 'clues' that we use that even with one eye our brain can percieve a depth perception. You'd fail our stereoscopic tests and probably waste money in 3d movies, but other than that you would have a normal life.