Bridget Riley

Bridget Louise Riley CH CBE (born 24 April 1931 in Norwood, London) is an English painter who is one of the foremost proponents of Op art, which exploits the fallibility of the human eye.

Sourced

 * For me nature is not a landscape, but the dynamism of visual forces - an event rather than an appearance.
 * Quoted in Karl Ruhrberg et al., Art of the 20th Century (2000), p. 344.