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Contact lens being designed to monitor blood sugar in tears of diabetics

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According to Quality Health on Tuesday, a new contact lens is being designed that can be worn by people with diabetes to monitor their blood sugar. The same lab that made Google Glass is developing a contact lens that measure glucose in tears to deliver an accurate blood sugar reading. So there will be no need for diabetics to prick their finger to get a blood sugar reading,

Founders of the contact lens are Brian Otis and Babak Parviz who believe that miniature electronics such as chips and sensors might be able to get a greater accuracy through a diabetic's tears. Earlier this year, Google revealed a functional prototype of this smart lens. A tiny wireless computer chip and a miniature glucose sensor are sandwiched between two layers of soft contact lens material. When the glucose is detected, the information is sent to a smart phone or another device.

Some doctors don't think the contact lens would give a reading in the right timing to be useful. The lens could give a reading that was an hour ago instead of at the exact time. Another problem with the contact lens is that the glucose might not accurately reflect an individual's blood sugar. Dr. Mark Fromer, an eye surgeon at Lenox Hill Hospital in New York City thinks that because tears are on the surface of the eye, Google lens does not have access to the fluid inside the eye. Besides, the glucose levels in the tear film will change based on the diabetic's blood sugar level. Dr. Fromer believes the lens will be useful only if the lens can reflect the current blood glucose level.

In the meantime, Google has already conducted clinical research studies and discussed the device with the FDA, but the technology is still in its early stages. Otis and Parviz agree that this is good news that comes at a time when the International Diabetes Federation (IDF) is declaring that the world is losing the battle against diabetes.

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