Swiss researchers have developed a contact lens-based device for monitoring intraocular pressure in patients with glaucoma.
A prototype of the device, tested on the enucleated eye of a pig, succeeded in detecting changes in IOP as the researchers from the Federal Institute of Technology in Lausanne pumped liquid into the posterior chamber.
'The key element of this measurement is a soft contact lens with an embedded micro-fabricated strain gauge allowing the measurement of changes in corneal curvature correlated to variation in IOP,' explained Matteo Leonardi, lead author of a paper on the device published in Investigative Ophthalmology & Visual Science.
The 'Wireless Eye Gauge' is fitted in the same way as a corrective contact lens. No anaesthesia is required and vision is barely affected. Data from the strain gauge within the contact lens is transmitted from an antenna in its circumference to an external receiver.
'This device would allow minimally invasive IOP monitoring over prolong
A prototype of the device, tested on the enucleated eye of a pig, succeeded in detecting changes in IOP as the researchers from the Federal Institute of Technology in Lausanne pumped liquid into the posterior chamber.
'The key element of this measurement is a soft contact lens with an embedded micro-fabricated strain gauge allowing the measurement of changes in corneal curvature correlated to variation in IOP,' explained Matteo Leonardi, lead author of a paper on the device published in Investigative Ophthalmology & Visual Science.
The 'Wireless Eye Gauge' is fitted in the same way as a corrective contact lens. No anaesthesia is required and vision is barely affected. Data from the strain gauge within the contact lens is transmitted from an antenna in its circumference to an external receiver.
'This device would allow minimally invasive IOP monitoring over prolong
CL device monitors intraocular pressure
