It's a great fact.
When people do this, do they focus and unfocus at the same time? 
A the best! 

TheMorningStar

I actually didn't get it completely. But overall good fact. 

Golu

Some people can voluntarily control their eye focus, making their vision blurry or unfocused.

The ability to defocus your eyes on command is a natural one, but not everyone can do it. It's accomplished by having the ability to relax the ciliary muscles in your eyes, which causes them to lose their focusing powers

https://www.healthline.com/health/eye-health/can-everyone-unfocus-their-eyes

Fun Fact Friday - Best Fun Fact Gets 10,000 Sats

## Some people can voluntarily control their eye focus, making their vision blurry or unfocused.
https://youtu.be/7S87gTLqycI?si=G7UuLZdzQuZ8WrDY
> The ability to defocus your eyes on command is a natural one, but not everyone can do it. It's accomplished by having the ability to relax the ciliary muscles in your eyes, which causes them to lose their focusing powers
https://www.healthline.com/health/eye-health/can-everyone-unfocus-their-eyes


Some people can voluntarily control their eye focus, making their vision blurry or unfocused.Some people can voluntarily control their eye focus, making their vision blurry or unfocused.