A man made a video showing just how much our eyes actually move in our day to day lives.
We're probably all aware to some degree that our eyes are capable of moving independently.
Otherwise in order to look somewhere else we'd have to turn our entire head round in order to see it.
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While that's still handy to look more widely, if you had to do it for every tiny change of direction that would be quite a faff.
There are a number of muscles around our eyes which help us to redirect them and glance around.
Of course, what with our eyes being balls it's a little bit tricky to see exactly how much they are moving when we glance around.
It would be easy to assume that they are just making very small movements, but as the video on social media shows that would be quite incorrect.
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The man had a very novel way of showing just how much our eyes move.
This was by putting his contact lens applicators onto his lenses, and then leaving them on while he walked around.
The result was really quite fascinating, and not just with how much his eyes were moving, but also the way in which they were moving.
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That's because his eyes appeared to be moving a lot in a way which made it seem as though his eyes were correcting.
He described how his eyes were tracking as he was turning around instead of moving them smoothly.
But then things were very different when he gave himself an object to focus on.
He did this by holding his finger up in front of his and following it as it moved back and forth, with his eyes moving in a completely different manner to how they had been moving before.
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It really just goes to show just how weird and versatile the muscles around the eyes actually are.
People piled into the comments on Reddit, with one writing: "Fun fact: when your eyes are in motion, your brain shuts off the optic nerve so you don’t get disoriented.
"It then stitches the image together so you don’t miss a beat. I’m massively oversimplifying, but it’s called saccadic blindness."
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Another said: "You spend about half of your day functionally blind, when you eyes make that jump your brain doesn't process images because it would be unfocused blur that would disorient you."
Meanwhile, a third gave them advice: "That’s nuts! Now please take them out and blink."
Kit Roberts