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Article

An Intraocular Pressure Measurement Technique Based on Acoustic Radiation Force Using an Ultrasound Transducer: A Feasibility Study

Department of Medical Biotechnology, Dongguk University, Seoul 04620, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Luca De Marchi
Sensors 2021, 21(5), 1857; https://doi.org/10.3390/s21051857
Received: 18 January 2021 / Revised: 2 March 2021 / Accepted: 3 March 2021 / Published: 7 March 2021
(This article belongs to the Special Issue Biomedical Sensors-Recent Advances and Future Challenges)
High intraocular pressure (IOP) is one of the major risk factors for glaucoma, and thus accurate IOP measurements should be performed to diagnose and treat glaucoma early. In this study, a novel technique for measuring the IOP based on acoustic radiation force was proposed, and its potential was experimentally demonstrated. The proposed technique uses the acoustic radiation force to generate axial displacement on the ocular surface while simultaneously measuring the degree of deformation. In order to verify that the ocular displacement induced by the acoustic radiation force is related to the IOP, the experiment was conducted by fabricating a 5 MHz single element transducer and gelatin phantoms with different stiffness values. Our experimental results show that there is a close relationship between the ocular displacement by the acoustic radiation force and the IOP obtained by a commercial tonometer. Therefore, the proposed acoustic radiation force technique can be a promising candidate for measuring the IOP. View Full-Text
Keywords: acoustic radiation force; ultrasound transducer; intraocular pressure; tonometry; eye phantom acoustic radiation force; ultrasound transducer; intraocular pressure; tonometry; eye phantom
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MDPI and ACS Style

Lee, H.S.; Jeong, E.Y.; Sung, J.H.; Choi, B.E.; Jeong, J.S. An Intraocular Pressure Measurement Technique Based on Acoustic Radiation Force Using an Ultrasound Transducer: A Feasibility Study. Sensors 2021, 21, 1857. https://doi.org/10.3390/s21051857

AMA Style

Lee HS, Jeong EY, Sung JH, Choi BE, Jeong JS. An Intraocular Pressure Measurement Technique Based on Acoustic Radiation Force Using an Ultrasound Transducer: A Feasibility Study. Sensors. 2021; 21(5):1857. https://doi.org/10.3390/s21051857

Chicago/Turabian Style

Lee, Hee S., Eun Y. Jeong, Jin H. Sung, Bo E. Choi, and Jong S. Jeong 2021. "An Intraocular Pressure Measurement Technique Based on Acoustic Radiation Force Using an Ultrasound Transducer: A Feasibility Study" Sensors 21, no. 5: 1857. https://doi.org/10.3390/s21051857

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