detection;it has attracted the attention of Novartis and Google,
among other major companies,and is currently under develop
ment in research laboratories around the world.
One significant step in its development was the first stand-a-
lone contact lens with an integrated battery.More recently,a
smart contact lens has been successfully developed for continuous
glucose monitoring.Such a product probably won't be ready for
commercial use for several years.But according to the Centers
for Disease Control and Prevention,about 45 million people in
the US already wear contact lenses to correct their vision.Switc
hing to a smart version would be simple for them-and of course,
you can wear smart lenses even if your vision is perfect.