Optic art or op art was a major development in painting in the 1960s. Three of the leading artists were Bridget Riley, Victor Vasarely and Jesus Rafael Soto. Artists used colours, lines, shapes (especially geometric shapes) and patterns to create illusions of blurring and movement. The effects on the viewer ranged from subtle to disturbing and even disorientation.
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Click on the image to enlarge – 4 artists submitted 16 artworks