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Measuring the precise area of peripheral retinal non-perfusion using ultra-widefield imaging and its correlation with the ischaemic index
  1. Colin S Tan1,2,
  2. Milton C Chew1,
  3. Jano van Hemert3,
  4. Michael A Singer4,
  5. Darren Bell4,
  6. SriniVas R Sadda5
  1. 1National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore, Singapore
  2. 2Fundus Image Reading Center, National Healthcare Group Eye Institute, Singapore, Singapore
  3. 3Global R&D, Optos Plc, Dunfermline, UK
  4. 4Department of Ophthalmology, Medical Center Ophthalmology Associates, San Antonio, Texas, USA
  5. 5Doheny Eye Institute, University of California Los Angeles, Los Angeles, USA
  1. Correspondence to Dr SriniVas R Sadda, Doheny Eye Institute-DEI 3623, 1450 San Pablo Street, Los Angeles, CA 90033, USA; SSadda{at}

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