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Abstract #79102 Published in IGR 20-1
Intraocular pressure remote photonic biomonitoring based on temporally encoded external sound wave stimulation
Bennett A; Agdarov S; Beiderman Y; Beiderman Y; Ozana N; Belkin M; Zalevsky ZJournal of biomedical Optics 2018; 23: 1-9
Continuous noninvasive measurement of intraocular pressure (IOP) is an important tool in the evaluation process for glaucoma. We present a methodology enabling high-precision, noncontact, reproducible, and continuous monitoring of IOP based on the value of the damping factor of transitional oscillations obtained at the surface of the eye after terminating its stimulation by a sound wave. The proposed configuration includes projection of a laser beam and usage of a fast camera for analyzing the temporal-spatial variations of the speckle patterns backscattered from the iris or the sclera following the above-mentioned sound waves external stimulation. The methodology was tested on an artificial eye and a carp fish eye under varying pressure as well as on human eyes.
Bar-Ilan University, Faculty of Engineering and the Nanotechnology Center, Ramat-Gan, Israel.
Full articleClassification:
6.1.1 Devices, techniques (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
6.1.2 Fluctuation, circadian rhythms (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
5.3 Other (Part of: 5 Experimental glaucoma; animal models)
