In this perspective optical illusion, our eyes distort perfectly straight lines into lightly curved ones.You have to stay in shape. My grandmother, she started walking five miles a day when she was 60. She's 97 today and we don't have any idea where she is. - Ellen DeGeneris
Home Gallery of Optical Illusions Optical Illusion Quiz
spc Bd 1 Bd 3
Share This Page

Perspective Optical Illusion

Are the red lines in this drawing perfectly parallel?

See Another Random Optical Illusion


Are the red lines in this optical illusion perfectly straight?


Scroll down for the answer and explanation.






There are two principals at work in this optical illusion. One is that our mind tends to convert angles to right angles. In the process of doing that, the red lines become slightly bent.

The second is that, the black lines give the illusion of looking down a tunnel. We assume that tunnel is round. Since this “tunnel” looks round, the red lines appear to be rounded, also.

Finally, you may notice that the background seems to shimmer and shake. This is normal given the strong contrast in the background fan.

Optical Illusions

We have free optical illusions, magic illusions, paper illusion, cool optical illusion, optical illusion art and more.
Get the Explanation
for this
Optical Illusion
Suggestions and Comments Link To This Site Send To A Friend Some Related Links Link To Our Site Map

Report A Broken Link To Us Contact Information

Free Optical Illusions

Visual Illusions


Site Map | Terms of Use | Privacy & Security | Contact Us | Purchase Agreement | Send Feedback
Cool Optical Illusion Pictures
© 1996-2005 by All Rights Reserved.