According to the US National Eye Institute, an optical illusion is something that tricks your eyes. It teaches us how the eyes and brain work together to see two-dimensional images.
We live in a three-dimensional world. Everything we see and visualize is a result of an object’s depth, shading, lighting, and position. So our brains are conditioned that way.
But when we see a two-dimensional image, our brain doesn’t react the same way. This is when our brain gets tricked and we visualize images in different ways.
Optical illusions are a source of great psychological concern. One can see a number of optical illusions on the internet that claim to have an in-depth analysis of the individual’s personality.