There have been studies done in diabetic retinopathy and one of the things that was found is that type I diabetics are more at risk then type II diabetics. This is because this diabetic complication risk factor is the length of time a person has the disease the more apt they are to have retinopathy.

The data from research and studies show that it can take as long as 15 years to go from the first stages of diabetes to blindness when it is not properly treated. The diabetic that is most at risk is the person that has poor control of their blood glucose level, this can be from not properly maintaining their insulin routine or it can be from other health conditions.