Milan Dobeš started devoting himself to optical art at the end of 1950s. Not only did his unmistakable optic kinetic and light kinetic objects awake interest in the then Czechoslovakia in the middle of 1960s but first and foremost abroad. In 1968 Milan Dobeš exhibited a collection of his works at a world exhibition of modern art Documenta 4 in Kassel. In his work he deals with optic collages and reliefs, creates optic kinetic objects (eg. a series of Pulsating Rhythms or Lighthouses), makes architectural reliefs, paints. In his graphic works he primarily uses the technique of serigraphy. He is globally recognized as a representative of op-art.