Deception occurs with our very perception. This deception begins with the eyes themselves. The eyes cannot see all spectrum of light. In turn, we cannot perceive the world to it's fullest. When the brain goes to process the raw data, it often fills in the blanks, or processes it relative to other images. When the mind interprets this product, it can only interpret based on images already perceived. We are not perfect beings. We, in turn, make mistakes. The world continues turning.
All of our senses decieve us in one way or another. They are unable to perfectly emulate the world around us. We can only function based on what data we receive from them. In my honest, but highly uneducated opinion, no sense decieves us more than our sense of sight.