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

Approximation and pattern recognition. People who have had one eye permanently damaged don’t see depth any further than what the pattern recognition allows. “Blurrier and smaller = further”, “clearer and bigger = closer”.

But more than once have I seen my friend with a damaged eye approximate a distance wrong, on something whose size he didn’t know for sure.