New Delhi, Aug. 10 -- Optical illusions have gained popularity on social media, and it has become a go-to brain teaser. Psychologists say optical illusions like this are more than just party tricks. They reveal how our brains process information and highlight cultural differences, and may even inspire training methods to sharpen visual judgment in professional settings.

In the latest optical illusion, viewers are shown a picture with two orange circles. Look at it for nine seconds and determine which one is bigger, and over 90 percent chose the wrong option.

The viral optical illusion showed two orange circles, and both were surrounded by grey circles, which leaves viewers convinced one is larger in size. Before scrolling down to see th...