A new kind of color changing contact lens could help wearers monitor their diabetes.

Professor Jin Zhang of the University of Western Ontario has developed contact lenses which could help monitor diabetes by changing color with the user's glucose level variations. The users will be alerted to dangerous sugar levels with a change in lens color, without needing to undergo regular blood tests. The hydrogel lenses are embedded with nanoparticles which change color by reacting with the glucose in wearer's tears.

[Singularity Hub via Edge Of Tomorrow]

Image by Rafael Lopes

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