First Contact Lens To Monitor Glaucoma Released

Eye pod: This contact lens (top) uses a circular strain gauge to detect changes in the diameter of the eye, an important factor in patients with glaucoma. The tiny microelectromechanical systems chip (bottom), made by ST Electronics, reads data from the strain gauge and wirelessly transmits the information to an external receiver. Credit: Sensimed

Glaucoma Test in a Contact Lens; The first continuous monitoring system for glaucoma hits the European market.

Glaucoma is the second most common cause of blindness, and without constant vigilance it can prove a very difficult disease to manage. But a Swiss biotech company has developed a monitoring system that allows physicians to keep track of their patients’ symptoms over 24 hours. Sensimed‘s “Triggerfish” system consists of a contact lens with embedded sensors that can pick up subtle physical changes in a patient’s eye, and then wirelessly transmit that data to a receiver worn around his neck.

Despite decades of study, researchers still only poorly understand the causes of glaucoma, a group of diseases in which deterioration of the optic nerve can eventually lead to blindness. But controlling one symptom in particular–high intraocular pressure, which is caused by too much liquid inside the eye–appears to help prevent disease progression.

Read the full story at Technology Review


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