A soft contact lens with a MEMS strain gage embedded for intraocular pressure monitoring

We propose a novel approach to intraocular pressure (IOP) measurement allowing minimal invasive continuous monitoring over prolonged periods, regardless of patient position and activities [1]. The key element of this innovative measurement method is a soft contact lens with a microfabricated strain gage embedded. allowing the measurement of the cornea curvature deformation due to IOP changes. Tests on a eye-simulating device have shown that the sensor is capable of monitoring continuously a deformation of cornea radius inferior to 0.0055 mm, which corresponds to a sensitivity of better than 2 mmHg IOP, according to an in vitro [2] and an in vivo [3] studies about the correlation between IOP and corneal curvature in human beings.


Published in:
BOSTON TRANSDUCERS'03: DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2, 1043-1046
Presented at:
12th International Conference on Solid-State Sensors, Actuators and Microsystems, BOSTON, MASSACHUSETTS, JUN 09-12, 2003
Year:
2003
Keywords:
Laboratories:




 Record created 2005-09-13, last modified 2018-07-07


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)