Cataracts and glaucoma are also more common among diabetics. It is also important to note that since the lens of the eye lets water through, if blood sugar concentrations vary a lot, the lens of the eye will shrink and swell with fluid accordingly. As a result, blurry vision is very common in poorly controlled diabetes. Patients are usually discouraged from getting a new eyeglass prescription until their blood sugar is controlled. This allows for a more accurate assessment of what kind of glasses prescription is required.
Whelton, P. K., Carey, R. M., Aronow, W. S., Casey, D. E., Collins, K. J., Dennison Himmelfarb, C., ...Wright, J. T. (2017, November 13). ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA Guideline for the prevention, detection, evaluation, and management of high blood pressure in adults. A report of the American College of Cardiology/American Heart Association Task Force on clinical practice guidelines. Hypertension. Retrieved from http://hyper.ahajournals.org/content/early/2017/11/10/HYP.0000000000000065
I think it's better to look at total work than just reps in a given set, as not all drills are created equal. For example, if you do a barbell complex consisting of five snatches, five cleans, five front squats, five barbell rows, and five deadlifts, you've done a ton more work than if you just did 25 medicine ball throws. The loading capabilities are greater with the barbell complex, and the bar travels over a greater distance. Since work equals force times distance, it's a more powerful stimulus than the medicine ball throws.
Lipase inhibitors can play a role. These are foods that have action in decreasing the digestion of fats so they move out of the body instead of getting absorbed. Since the digestive tract is the major place where POPs are both removed from the body and taken into the body, doing what is possible to NOT allow fat soluble compounds reentry is important. Some common lipase inhibitors include green tea, oolong tea, mate tea, and ginger root.