Insulin pens, lightweight plastic handheld devices with prefilled insulin cartridges inside, use microfine needles to deliver insulin to diabetics. Not only are these devices easier to use and significantly less painful than conventional syringe needles, they also deliver more accurate doses of insulin. Since nearly one-third of the Americans with diabetes have some degree of vision loss and diabetes is the leading cause of blindness among working-age adults, it is imperative that insulin pens be usable by everyone—sighted or blind. Diabetes is a threat only if it is not managed properly, and the more accurate, discreet, and easy-to-use insulin pens should be made accessible for people with vision loss.
Diabetes and Visual Impairment: Are Insulin Pens Accessible?, AccessWorld®, Vol. 7, No. 4, July 2006.
Uslan, M. Beyond the "Clicks" of Dose Setting in Insulin Pens. Diabetes Technology and Therapeutics, vol. 7, no.4, 2005: 627-628.