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Check Blood Sugar via Eye Scanner

Finger picking to draw blood to test glucose levels is one major obstacle that many diabetics face to regularly monitor blood sugar. Fear of pain and the hassle of performing the rigorous procedure get in the way for successful blood sugar monitoring. This has drive scientists to find noninvasive ways to measure blood glucose levels without drawing blood, puncturing the skin, or causing pain or trauma.

One of the most promising procedures is the non-invasive ocular glucose measurement technology in which optical changes are measured using a scanning device to determine blood sugar levels. Such technology essentially uses polar imagery and the relation of light to specific to glucose. Known as the Oculir’s method, it measures the amount that polarized light is rotated by glucose in the front chamber of the eye which contains the aqueous humor, a transparent, gelatinous fluid containing low protein concentrations secreted from the ciliary epithelium that fills the space between the cornea and the iris. Unfortunately, the method has not yet materialized successfully.

As of the moment, the latest non invasive ocular glucose measurement technology included the ClearPath DS-120 Lens Fluorescence Biomicroscope which is a tool for measuring autofluorescence by scanning the crystalline lens of the eye with a blue light. The scan does not require dilation. It is manufactured by Freedom Meditech, Inc. is a medical device company, which is currently developing another non-invasive ophthalmic glucose monitor called I-SugarX.

Another related product under this heading is the NovioSensem, a small and flexible spring like device coated with a soft hydrogel layer that is placed to conform to the surface of the lower eye lid where the sensor is placed. With a low-power and highly sensitive ASIC technology, the device can measure minute changes in glucose in the tears that are representative of blood glucose level. At the moment, the device has yet to receive regulatory approvals.

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