What does it mean for one eye to be dominant and how does it contribute to our vision?

Question

I’m curious about what exactly a dominant eye means, and what effect it has on how humans see the world

In: 4

Answer 1

With both eyes open, stick either arm out and point to something at a distance. You will see two fingers coming out of your hand. Close each eye separately and the one that points accurately is your dominant eye.

I can only guess having a dominant eye would improve the accuracy of throwing with a dominant arm. But I’ve read people can have mixed dominance between limbs and vision. Or between upper and lower body.