What Number Do You See? | Everyone’s Seeing A Different Number

Test your eyesight with this puzzling optical illusion.

Things travel very fast on the internet. In no time, any content or information can go viral all over the world. This time, what has taken the internet by storm is an optical illusion that was shared on Twitter by a user named @benowine.

The image shows a number partly concealed within a striped black and grey circle. Viewers are asked if they see a number and, if so, what number do they see?

The stripes are arranged in uneven spirals, making it harder to figure out the number.

Since the visual puzzle went viral on Twitter, thousands of people have viewed it and come to very different conclusions about its hidden figures.

The tweet reads: ’45 283…and what’s the catch? Should I make an appointment with my doctor?’’’

Another poster said: ‘I can only see 528. Does that mean I have bad eyesight?’

One more wrote: ‘I’m seeing 45283, but looking at the other replies, other people are seeing two other numbers. There are numbers there, but I cannot make them up.

However, the correct answer is seven digits: 3452839.

It has been observed that the illusion relies on contrast sensitivity, a measure of visual function that allows us to perceive differences between objects and their backgrounds.

As an example, when driving in low light or fog, a higher contrast sensitivity is required because the contrast between objects and their backgrounds is reduced.

The numbers are on one level of the puzzle and the swirls are on the other.

A person with a higher contrast sensitivity is more likely to be able to see all seven digits at once.

Eye conditions such as cataracts and glaucoma can impair contrast sensitivity.