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Internet search giant Google has revealed a radical smart contact lens that will keep a check on glucose levels by analyzing tears of the person having diabetes. 

"You've probably heard that diabetes is a huge and growing problem-affecting one in every 19 people on the planet," Google said in a blog post announcing the research.

"But you may not be familiar with the daily struggle that many people with diabetes face as they try to keep their blood sugar levels under control," the blog added.

"We're now testing a smart contact lens that's built to measure glucose levels in tears using a tiny wireless chip and miniaturized glucose sensor that are embedded between two layers of soft contact lens material," they said. 

The unveiled prototype, they said, can generate one reading every second. 

For bringing the use of contact lenses at mass level, Google is in talks with FDA, but added that there was a lot more scope of improvement in the technology before people can actually start using it. 

Google eventually plans to integrate an LED to it so that user can be notified about their glucose levels more apparently. 

One of the project's co-founder is Babak Parviz who has given numerous talks about embedding LEDs and other sensors into contact lens.

While at university, Parviz partnered with Microsoft but was later picked up by Google where he founded the Glass team.