He thinks the 3D printed LED
display is interesting, but notes that the voltage it needs to switch
on is still too high to use in a commercial
contact lens.
As is outlined in the resulting research paper, which is titled «Soft, smart
contact lenses with integrations of wireless circuits, glucose sensors, and
displays,» the researchers were able to create a
contact lens which could respond to changes in glucose and provide results via an LED panel
on the
lens itself.