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.
Diabetic retinopathy can cause vision loss in two ways: 1  Macular Edema. 2  Macular edema is a condition where your retinal blood vessels develop tiny leaks. 3  When this occurs, blood and fluid leak from the retinal blood vessels and fatty material (called exudate) is deposited in the retina. When this occurs, blood and fluid leak from the retinal blood vessels and fatty material (called exudate) is deposited in the retina. 2  This causes swelling of the retina and is called diabetic macular edema.