Contact lenses react to blood-sugar levels

Contact lenses that change their appearance according to the wearer’s blood-sugar level could one day help people with diabetes keep track of their levels non-invasively, new research suggests.

Diabetes affects the body’s ability to make or use the hormone insulin, which can cause dangerously large swings in levels of blood sugar, or glucose. Currently, most people suffering diabetes monitor their blood sugar by pricking their skin and drawing blood.

Full Story: http://www.newscientist.com/article.ns?id=dn7182