Hello! You are trapped in a world illusions of your eyes.

Optical illusion - unreliable visual perception of a picture: incorrect assessment of the length of the segments, the visible color of the object, the angles, and others.

The reasons for such errors are made in the features of our physiology, as well as the psychology of perception. Sometimes the illusion may lead to completely wrong-specific quantitative estimates of geometric quantities.

Translated from the Latin word "illusion" means "error, misleading." This suggests that the illusion has long been interpreted as some failures in the visual system.

The study of their causes involved many researchers. Some visual deceptions have long had a scientific explanation, others are still unexplained.