What does op-art mean?

Op-art, short for optical art, is a style of visual art that uses optical illusions to create the illusion of movement, depth, or other visual effects. Op-art works are often abstract and geometric, and they may use bright colors and contrasting patterns to create a sense of visual confusion or disorientation. The goal of op-art is to trick the viewer's eye and create a visually stimulating experience.

Op-art emerged in the 1960s and was popularized by artists such as Victor Vasarely, Bridget Riley, and Richard Anuszkiewicz. It has been used in a variety of contexts, including painting, sculpture, and graphic design.