1. Cotton-wool spots  
          2. Retinal hemorrhage: dot, blot, flame-shaped  
          3. Preretinal hemorrhage  
          4. Microaneurysms  
          5. Focal narrowing of retinal vasculature  
          6. Arterial occlusion with focal deposits  
          7. Central/branch retinal arterial occlusion    with cherry red spot  
          8. Central/branch venous occlusion  
          9. Retinal neovascularization  
          10. Anterior segment ischemia  
          11. Vitreous hemorrhage  
          12. Traction retinal detachment  
          13. Neovascular or hemorrhagic glaucoma  
          14. Hypertensive changes (arteriolar    narrowing, hard exudates, flame hemorrhages, papilledema)  
          15. Optic disc vasculitis | 
       
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