Pin Pricks to be replaced by contact lense

Boing Boing informs us that bioengineers at the University of Maryland are developing contact lenses that change color in response to changes in blood sugar. Original article

The system is not the first non-invasive glucose monitoring system to be developed. The US Food and Drug Administration approved another system, called GlucoWatch, in 2001. GlucoWatch, which is worn on the wrist, applies a small electrical current to the skin, drawing the fluid between cells through the skin to test it for glucose. But the company that makes GlucoWatch still recommends occasional blood sugar monitoring through finger pricks.