Case 2

Retinopathy is the result of microvascular disease of the retina. Changes seen are:

  • Non-proliferative retinopathy (minimal, mild, moderate and severe)
  • Dot and blot haemorrhages
  • Hard exudates
  • Proliferative retinopathy
  • Soft exudates indicating ischaemia
  • New blood vessel formation
  • Macular oedema , which is non-proliferative retinopathy at or close to the macular region

Patients with diabetes are also at risk of early cataract development, approximately 10 years before their non-diabetic 
peers, and also at increased risk of glaucoma.

Assessment is by ophthalmoscopy through dilated pupils, retinal photography, fluorescein angiography, slit lamp 
examination, regular monitoring by a diabetes specialist and periodic review by an ophthalmologist.

Sudden loss of vision may be due to central retinal artery occlusion, retinal detachment or vitreous haemorrhage.