Which art movement is associated with optical illusions and includes Bridget Riley and Victor Vasarely?

• A. Op Art
• B. Surrealism
• C. Realism
• D. Expressionism

Answer: (A)

Optical illusion and perceptual effects define this movement. It uses precise geometric forms, high-contrast color, and repeating patterns to create vibrations, shifts in depth, or a sense of motion in a static image. Bridget Riley’s crisp black-and-white lines and grid-based compositions show how rhythm, alignment, and scale can trick the eye, while Victor Vasarely experimented with geometric shapes arranged to produce dynamic optical experiences. Other movements emphasize dream imagery (Surrealism), truthful representation (Realism), or emotional distortion (Expressionism), but not with the same focus on visual perception and optical effects. So this is Op Art.