Appropriate username. On topic, though, I tried it, and changing what I'm focuse... | Hacker News

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Sohcahtoa82 on Sept 1, 2021 | parent | context | favorite | on: Man can change his pupil size on command

Appropriate username.

On topic, though, I tried it, and changing what I'm focused on doesn't change my pupil size. But maybe I wasn't going far enough? I just looked in a mirror, focused on a spec of dust on the mirror, then changed focus to the image of something behind me, and my pupils didn't change at all.

sethammons on Sept 1, 2021 [–]

Instead of focusing like that, think about crossing your eyes but keep them in place. It is like changing the depth of focus, but different.

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