Optical Illusion: Only 2% of People Can Tell Which Green Line Is Longer In 5 Seconds

Optical Illusion: Check your intelligence ability by figuring out which green line is longer within 5 seconds. Only 2% of people can correctly do so.

Early-stage visual perception impairment in schizophrenia, bottom-up and back again

Brain teaser: Optical illusion only the cleverest 2% of people can solve in 11 seconds

Effects of cannabis on visual function and self-perceived visual quality

You have 20/20 vision if you can find the animal hidden among the lines in this optical illusion within 20 seconds

Brain Teaser For IQ Test: Girl is in Danger! Can You Find the hidden Crocodile and other mistakes in the backyard picture within 3 minutes?

20 Optical Illusions That Confuse the Smartest People

Optical Illusions

The viral optical illusion takes the internet by storm. - Scoop Upworthy

Optical illusion: Can you find the numbers hidden in the picture? You only have 7 seconds! - Abmeyerwood

Only 2% of people can solve this optical illusion at first glance

What if I told you the two red lines were the same size !? (Perspective Line Illusions)