> Diabetes Research > Contact Lenses developed to Check Glucose Levels

Contact Lenses developed to Check Glucose Levels

Researchers from the University of Akron are developing contact lenses that have the ability to identify glucose levels present in tears. If glucose concentration builds up in the body, the lenses will change in color.

“It works just like pH paper in your high school chemistry lab,” explains Dr. Jun Hu, associate professor of chemistry at the University of Akron, Ohio. “The pH paper changes color depending on the acidity or the proton concentration of the liquid applied. That is similar to what happens in our specially designed contact lens, the sugar molecule literally acting like the proton in a pH test, displacing a color dye embedded in the lens, and the lens changes color.”

“Glucose concentrations in tears can be used to intermittently or continuously monitor diabetic patients just as effectively as blood sugar levels measured directly from blood from a pricked finger.”

The person wearing the lens won’t be able to notice the color change unless he or she looks in the mirror, but in response to this, the scientists have developed a smartphone application which enables to calculate the glucose levels in the lens by simply aiming the smartphone at the eye and taking a photo. Only one of the two contact lenses, however, would contain the glucose-sensing chemical, while the other remains normal in order for the app to calculate the color difference to identify the blood sugar concentration.

Dr. Hu explained that the lens contains a small amount of color-changing material thus, making it still feel comfortable without interfering with the wearer’s vision.

The chemist believes that the device could be used to detect subtle changes in glucose levels for tight diabetes management and works just as effectively as blood sugar levels measured directly from traditional methods of pricking the finger.

The chemistry professor said that it can be used to identify those pre-diabetic conditions, allowing early diagnosis which can aid in preventing diabetes from advancing.

With this, it may boost patient compliance to blood sugar testing with the innovation’s convenience, comfort, and even cost.

Related terms:

Related Posts:

» Tags: , , ,

Related terms:

Leave a Reply

Your email address will not be published. Required fields are marked *