Table 1 Case definition (in varying combination)
(1) An associated contributing illness such as acute pancreatitis, long bone fracture, orthopaedic surgery, chest compression or crush injury
(2) Multiple areas of polygonal retinal whitening between the retinal arterioles and venules (Purtscher flecken) and/or superficial cotton wool spots in one or both eyes
  • typically restricted to the posterior pole

  • accompanied by minimal, if any, retinal haemorrhage

  • no visible emboli in the large retinal vessels

  • no direct ocular trauma