Why even with only one eye open, and therefore no depth perception, do we still have to focus on objects near and far?

Question

What happens in each eye individually when you cross them that makes them focus closer if it isn’t just simply two converging images?

In: Biology

Answer 1

Each eye focuses independently of each other and sends what it sees to the brain. The brain then does some really clever and complicated jiggery pokery and puts the images together and you see one image.

Amongst all the magic that happens in your brain your brain uses the two images from slightly different perspectives/angles and can work out depth perception