It seems a little strange to say, but the world of optical art remains somewhat ignored in artistic circles. Why this is, we can’t say, as this is a form of creation that was specifically developed in order to sharpen our focus and awareness of how ambiguous aesthetics really are. That makes this exhibition at Mumok all the more fascinating, a collection of optical art and illusions that will challenge your senses and open your eyes to the fickle nature of aesthetic understanding.