Diabetic retinopathy

• Facts:
  Leading cause of blindness in the USA
  Occurs in both types of diabetes
  Visual impairment occurs with the development of macular edema
  
• History / PE:
  Background / simple
  Microaneurysms, hemorrhages, exudates, retinal edema
  
  Pre-proliferative
  Cotton-wool spots
  
  Proliferative / malignant
  Neovascularization
• Treatment:
  Argon laser photocoagulation
• Associated With:
  Diabetes mellitus