16 Optical Illusions That Made Us Seriously Doubt Our Eyes

Optical illusions can trick your eyes and your mind. You think you know what you see, but it turns out it’s an illusion. Are you ready to test your eyes and see how your brain can fool you?

Bright Side wants to share 16 visual challenges that will test your mind and make you doubt your eyes. We’re about to find out how sure you are of what you see, and how much you can trust your eyes.

1. Can you tell which of the 2 yellow lines is longer?

2. Do you think these diagonal lines are parallel to each other?

3. What about the red lines in this image — are they straight or curved?

4. How many colored spheres can you see here?

5. Welcome to an Ames room. Nothing is impossible here. Which of these 2 people do you think is taller?

6. How many points do you think this trident has?

7. Can you tell which animal is hiding here?

8. Now, concentrate on one point of this image for at least 15 seconds. Don’t think about anything else. Keep looking. Can you see the image disappearing?

9. Can you tell if the circles are moving or still?

10. Can you count all the black dots in this image?

11. What color are these shapes?

12. Can you tell if this image is 3D?

13. The task here is simple: Follow this spiral from beginning to end.

14. Can you tell which rectangle is darker?

15. Which of the lines is longer?

16. And which of these orange circles is larger?

After doing these visual exercises, we got the feeling that we’d never trust our eyes again. But we learned a lot about how our brains work. What about you? Did any of these optical illusions fail to trick your mind?

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