CLEAR SIGHT: A Trial of Non-Mydriatic Ultra-Widefield Retinal Imaging to Screen for Diabetic Eye Disease

Diabetic eye disease causes major vision loss in many Canadians and is costly. There are effective preventions and treatments for diabetic eye disease but they strongly depend upon regular screening in asymptomatic patients. The 2013 Canadian Diabetes Association (CDA) guidelines recommend annual screening by eye care professionals, either in-person or through interpretation of dilated pupil retinal photographs. Despite the benefits of screening, adherence to these guidelines is poor. Reasons include patient barriers, i.e. need for eye drops, time off work, wait times, and transportation issues. An option to minimize these barriers is to screen using a camera called non-mydriatic ultra-widefield (UWF) retinal imaging. This can be quickly done without eye drops on the same day as patients\' regularly scheduled diabetes clinic visits. In this study, the investigators will compare the UWF camera to the usual screening approach recommended by the CDA. The investigators will invite 740 patients with diabetes due for eye screening to either be screened using the UWF camera on the day of their diabetes clinic visit or be screened by their usual eye care professional. The investigators\' prediction is that same-day screening with UWF imaging will find more patients with diabetic eye disease who need treatment compared to usual screening.