1 Interchangeable needle kits are exactly what they sound like--a set of knitting needle tips, and a set of cords of varying length that can attach and detach from the tips to create many different combinations of needle sizes and cord lengths.
Poor circulation (blood flow) can make your foot less able to fight infection and to heal. Diabetes causes blood vessels of the foot and leg to narrow and harden. You can control some of the things that cause poor blood flow. Don't smoke; smoking makes arteries harden faster.
Diabetes and Vision. Diabetes is a disease that causes your body to not use or store sugar properly. When your blood sugar gets too high, it can damage your eye by weakening or swelling the tiny blood vessels in the retina. This damage may lead to diabetic retinopathy.