Google has invented its hi-technology “contact lenses” which can measure the blood glucose of a person in real time sound unrealistic but google has done it.  Reportedly, the lenses are expected to monitor the sugar levels through the tears.
The lenses will feature a minuscule glucose sensor and a wireless transmitter to help those among the world’s 382 million diabetics who need insulin keep a close watch on their blood sugar and adjust their dose.
An official blog post by Google reads, “Glucose level in a human body can be measured from tears but as you can imagine, tears are hard to collect and study. At Google X, we wondered if miniaturized electronics—think: (silicon) chips and sensors so small they look like bits of glitter, and an antenna thinner than a human hair—might be a way to crack the mystery of tear glucose and measure it with greater accuracy.”
As per reports, the lenses are still in their developmental stage and it will take another five years to reach them to the consumers. The engineers have been working on the protocol from past 18 months in the Google X laboratory, which is a special division in the company that deals in future technology.
"We're in discussions with the FDA (the US governmentthat regulates health products), but there's still a lot more work to do to turn this technology into a system that people can use," quoted a Google spokesperson.
The current prototype of the contact lens can record the glucose level every second.
Explain its functioning, the official Google blog post reads, "The product measures glucose levels in tears using a tiny wireless chip and miniaturized glucose sensor that are embedded between two layers of soft contact lens material. We're testing prototypes that can generate a reading once per second. We're also investigating the potential for this to serve as an early warning for the wearer, so we're exploring integrating tiny LED lights that could light up to indicate that glucose levels have crossed above or below certain thresholds."