This optical illusion reveals a hidden number – and everyone sees it differently.

How can this gap be explained? It’s all about the design of the illusion. The numbers in the center of the circle are surrounded by high contrast, making them more visible. But as you move toward the edges, the contrast decreases, making the peripheral numbers almost invisible. A tip? Blink slightly to better see the outlines!

What it says about your eyesight

If you managed to see the entire number, well done: your eyesight is exceptionally sharp. For others: this doesn’t necessarily mean your eyesight is failing. It could simply mean that your contrast sensitivity needs improvement. Vision exercises or regular visits to the eye doctor can strengthen this important ability