In the future, contact lenses with built-in electronics can monitor diabetes or glaucoma.
Measuring equipment can be built into lenses without obstructing your vision.
Contact lenses are a logical candidate for integrating health technology. They are almost invisible, they are close to the body, and we carry them with us almost unnoticed.
There are, however, three challenges to be overcome before the technology can be completed: the materials must be flexible, the electrical components must not obstruct the wearer's vision, and the lens must be powered.© Giphy
Soft lens does not crack
A South Korean team from the UNIST research institute in Ulsan succeeded with a new concept. The team placed the electronics of the contact lens on pieces of solid material and connected it to an elastic substrate.
The result is a flexible contact lens that can bend without creating cracks or loading the sensitive electronics.
The researchers then made a current-conducting antenna out of a transparent material that lies like a ring along the iris.
Elastic disk observes your body
An invisible antenna provides power to the lens circuit, so that sensors and lights can detect an imbalance in blood sugar.
Monitoring of eye diseases
So far a test version has been made that monitors the blood sugar of diabetic patients. The researchers fitted the electrical contact lens with a glucose sensor and an LED light.
If the sensor measures a high glucose level in the tear fluid, the lamp goes out. Smart lenses can be used for more medical purposes, such as to monitor the eye disease glaucoma.
Jet measures one tenth of a human hair
The newest in the field of radio surgery is Microbeam Radiation. A synchrotron, a round particle accelerator, accelerates particles so much that they start emitting X-rays.
The radiation is concentrated in such a way that the beam that enters the body has a diameter of only 10 micrometers (1 / 100,000 meters) - approximately one tenth of a human hair. This keeps the damage to healthy cells minimal.