this post was submitted on 18 Dec 2023
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woahdude

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It's not a trick, if you're wondering. There actually is something to see.

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[–] [email protected] 11 points 10 months ago (3 children)

Yeah these don't work at all for me. Maybe it's me astigmatism or something.

[–] [email protected] 6 points 10 months ago (2 children)

It's funny you say that. I have astigmatism, but I learned to see these on demand before I got glasses to correct it. The tricks all involve getting your eyes to focus farther away than the actual image surface. I could easily see the butterfly while wearing my glasses. Then I read your comment and tried again without my glasses and I could still see something but it was no longer a cute butterfly. Without my glasses, it was an abyssal horror with wings unfolding from other wings in a vaguely butterfly configuration.

[–] [email protected] 3 points 10 months ago (2 children)

Do you need both eyes for this? One of my eyes is almost useless and also lazy, the other one has... Something, I don't recall what, but it's all blurry from up close and hard to focus. Guessing astigmatism. I don't wear glasses.

[–] [email protected] 4 points 10 months ago

Yes, it's entirely dependent of tricking your eyes into changing their angle as if they are looking at something farther away than the image actually is.

[–] [email protected] 2 points 10 months ago

Two eyes are how humans have depth perception, yes.

[–] [email protected] 1 points 10 months ago
[–] [email protected] 2 points 10 months ago (1 children)

Hmm. I used to be able to see these so easily, but that was such a long time ago and I've since had Lasik. I wonder if that changes things.

[–] [email protected] 1 points 10 months ago

Why would that have anything to do with it?

[–] [email protected] 1 points 10 months ago

Put on your glasses.