Diabetes mellitus is a disease that is rapidly increasing in prevalence worldwide, particularly in Canada and the United States. One of the most common complications for all types of diabetes mellitus is diabetic retinopathy, a disease that is currently the leading cause of blindness among adults in the United States and Canada. It is estimated that at least 40% of Americans and Canadians with diabetes mellitus have some clinically detectable form of diabetic retinopathy, and statistics are similar worldwide. This invaluable book contains all the information you need to know about the causes, tests and treatment options available to combat this sight-threatening disorder.