It’s a myth that depth perception is entirely the result of having two eyes. Binocular vision does assist in making a three-dimensional picture. However, most of your ability to perceive depth comes from inside your brain. It has been wired to look at angles and proportions to judge distance.

If you required two eyes to perceive depth then most optical illusions wouldn’t work and it would be incredibly difficult to gather information from flat photographs. Not to mention a lot more one-eyed pirates walking overboard.

I’ve been blind in my left eye all my life and I’ve never, that I can recall, had a problem with depth perception except for small, fast-moving objects, like a baseball. I’m sure it doesn’t look the same as it does to someone with binocular vision, but I have no problems looking at an object and judging how far away it is with reasonable accuracy. – One-Eyed Kelli

The real question becomes, WHY THE FUCK WOULD YOU WANT TO POKE OUT YOUR EYE WITH A STICK???