If depth perception works because the brain checks the difference in the position of the object between the two eyes and concludes how far away it is, how can we still see depth when one eye is closed?

Question

If depth perception works because the brain checks the difference in the position of the object between the two eyes and concludes how far away it is, how can we still see depth when one eye is closed?

In: 3602

Answer 1

Your brain tries its best but you really can’t.

Close one eye and get someone to throw a tennis ball to you. Chances are you’ll miss it even if you’re normally good at catching. The reason is because you can no longer properly judge distances accurately enough to accomplish the task.