Pink, green and orange stripes, painted directly onto the walls by the renowned artist Bridget Riley, transform the corridors of St Mary’s Hospital in London.

Commissioned by Imperial College Healthcare Charity Art Collection for the 10th floor of the Queen Elizabeth the Queen Mother building, the mural joins two others made by Riley on the 8th and 9th floors more than 20 years ago.

The artist said: “The hospital corridors embrace the whole space: they aim to lift the spirits and to remind one of life outside the hospital, while in no way interfering with the essential activities of the hospital as it goes about its business.

Rosemary Harris, curator of the Imperial College Healthcare Charity Art Collection, said: “The hospital is privileged to have the commitment of such a great artist to create these really wonderful works, which have transformed the clinical environment into an uplifting and beautiful place for everyone to enjoy.”