Possible Contributory Etiologies of RVO

  • Activated Protein C Resistance 5

  • Benign Retinal Vasculitis 3

  • Arteriovenous crossing abnormality (BRVO) 5

  • Presumed Phlebitis of the optic disc vessels 5
  • Hypertension 2,3
  • Diabetes Mellitus 2,3
  • Kidney Disease 3
  • Older Age 3
  • Urban Location 3
  • Hyperlipidaemia 5
  • Atherosclerosis 5
  • Glaucoma 2,3
  • Atrial Fibrillation 2
  • Aspirin use? 2
  • Warfarin use? 2
  • Clopidogrel use 2
  • Any anticoagulant use 2
  • Estrogen use (postmenopausal women) 2