Inclusion Criteria:  Male or female, at least 18 years of age and diagnosed with type 2 diabetes and diabetic retinopathy Participant willing and able to give informed consent for participation in the study  Exclusion Criteria:  In 12 months prior to consent, evidence of existing cardiovascular event defined as at least one of: myocardial infarction ischaemic stroke hospital admission/discharge of unstable angina heart surgery unstable angina transient ischaemic attack The participant may not enter the study if they have any contraindication to magnetic resonance imaging (standard MR exclusion criteria including pregnancy, extensive tattoos, pacemaker, shrapnel injury, severe claustrophobia) Patients with known autoimmune hepatitis, viral hepatitis, Wilson's disease or known significant structural renal tract abnormality Patients with known alcohol dependency