Crazy optical illusions

This optical illusion exposes a flaw in our brains by proving that there's a delay in how we perceive it — but it's only 15 milliseconds.

This scary optical illusion is being shared on social media as it claims that it will leave you seeing terrifying visions — so try it at your own risk! #personalitytest #personalitytype #quiz #funtest #mindgame #opticalillusion #visualtest

Why is it hard for us to accept optical illusions as real? When you see something in front of your eyes, it's hard not to believe it, but the brain is a weird thing, and finding out why we see things a certain way can be a hard pill to swallow. #personality #personalitytest #optical #optical-illusion

This new optical illusion has swept the internet, igniting a heated debate about the correct answer. So which numbers did you see? #personalitytest #personalitytype #quiz #funtest #mindgame #opticalillusion #visualtest

Think you can spot the hidden object? See if you can find the lady in this pond optical illusion! It might be tougher than you think.

The Mask | Official Page on Instagram: "WOW CRAZY BIG ILLUSION REVEALED #crazy #illusion #magic #tricks #viral #viralvideo #trending #trend"

Dr. Chad on Instagram: "This optical illusion will totally creep you out 🫣"

Which of these rhomboids is darker in color? Top or bottom? Are you sure? Cover the area between the two gray areas with your finger. This is similar to the "checkershadow" illusion (here, and with video here) (and sort of here).

A collection of optical illusions