According to Reuters wisdom contact lenses in this concept been around for years, whether it is Google's measure blood sugar, vision correction contact lenses, or blink SONY and Samsung camera, various manufacturers are interested in the people want to fight for vision, but the wisdom of contact lenses It is not easy to combine comfort and performance. At present, major manufacturers are still in the research and development stage.
Recently, the National Science and Technology Research Institute of Ulsan (UNIST) in South Korea has also begun to study smart contact lenses, using sensors and LEDs in soft contact lenses to test blood sugar. When the blood sugar level in the tears is too high, the green LEDs will stop flashing continuously. To remind users.
At present, when patients with diabetes use blood glucose, they usually use their blood-picking needles to poke their fingers or insert needles under the sebum. Patients have to endure the inconvenience and tingling of the device. If this study is first developed, it is a symptom for diabetic patients. Great gospel.
To keep the patient from feeling uncomfortable, the team created a soft and flexible transparent electronic component that uses an antenna and a rectifier to convert nearby generators into electricity, which powers the glucose sensor and the LED. The LEDs are illuminated outwards, and the wearer does not see the flashing green LEDs.
LED is a kind of semiconductor electronic component that can emit light. It has the advantages of small size, power saving, and no interference with electromagnetics. The application range is wider, ranging from advertising panels to small-scale LED LiFi optical communication. LEDs are everywhere nowadays. Visible lamps and bulbs. LED traces will also be found in the concept of some smart contact lenses.
However, this study has not been used in human clinical practice, only in animal experiments, and the researchers did not find any adverse reactions, guiding scientist Jihun Park said that the sensor can also accurately trace blood sugar in tears.
However, this product still needs continuous research and development. David Walt, a diagnostic expert at Harvard University's Wyss Institute, points out that there are still some problems to be solved. Glucose sensors use glucose oxidase (Glucose Oxidase) to measure blood sugar, but glucose oxidase combined with sugar produces hydrogen peroxide, which can damage the eyes. And as time goes by, the amount of glucose oxidase in the device will also drop, and we have to find ways to extend the life of contact lenses.
Park also said that such smart contact lenses also have room for improvement and will solve problems with other manufacturers. According to the news, in addition to Verily (formerly known as Google X), some manufacturers such as Sensimed, EPGLMed, Samsung, SONY and Apple will also need to launch smart contact lenses in the future.
Editor: Yan Zhixiang
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