The number of people living with diabetes is going up and up and shows no sign of slowing down. There are now 3.9 million people living with the condition (Health and Social Care Information Centre [HSCIC], 2014) and, if nothing changes, this number is projected to rise to five million by 2025 (figures based on Association of Health Professions in Ophthalmology [AHPO] diabetes prevalence model — http://bit. ly/aphodiabetes). A growing number of people with diabetes are experiencing devastating complications, leading to premature deaths and unsustainable costs to the NHS.