Testing the viability of measuring intraocular pressure using soundwaves from a smartphone

Abstract Early detection of increasing values of intraocular pressure (IOP) due to glaucoma can prevent severe ocular diseases and ultimately, prevent loss of vision. Currently, the need for an accurate, mobile measurement of IOP that shows no correlation to central corneal thickness is unmet within...

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Main Authors: Matthew Soanes, Khamis Essa, Haider Butt
Format: Article
Language:English
Published: Wiley 2021-07-01
Series:Engineering Reports
Subjects:
Online Access:https://doi.org/10.1002/eng2.12355
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author Matthew Soanes
Khamis Essa
Haider Butt
author_facet Matthew Soanes
Khamis Essa
Haider Butt
author_sort Matthew Soanes
collection DOAJ
description Abstract Early detection of increasing values of intraocular pressure (IOP) due to glaucoma can prevent severe ocular diseases and ultimately, prevent loss of vision. Currently, the need for an accurate, mobile measurement of IOP that shows no correlation to central corneal thickness is unmet within the modern healthcare practices. There is a potential to utilize soundwaves as a mobile measurement method and therefore, the relationship between IOP and the reflection coefficient of sound waves is investigated. Simulations are conducted using COMSOL Multiphysics to provide theoretical confirmation of the worthiness of the experiment. An experiment is conducted to further investigate the relationship between the internal pressure of an object and its acoustic reflection coefficient. The experiment exploits the use of hydrostatic pressure to determine internal pressure, and the reflection coefficient is measured and analyzed. An initial experiment is conducted to identify the resonant frequency of the object and the optimal frequency for maximizing reflection. The experiment shows comprehensively that there is a relationship between the internal pressure of an object and its acoustic reflection coefficient, providing a confirmation of the theory that would allow mobile measurements of IOP to be conducted with the use of a smart phone.
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spelling doaj.art-21b8101dfbee436b8329ffaf0457c2132022-12-21T22:41:01ZengWileyEngineering Reports2577-81962021-07-0137n/an/a10.1002/eng2.12355Testing the viability of measuring intraocular pressure using soundwaves from a smartphoneMatthew Soanes0Khamis Essa1Haider Butt2School of Engineering University of Birmingham Birmingham UKSchool of Engineering University of Birmingham Birmingham UKSchool of Engineering University of Birmingham Birmingham UKAbstract Early detection of increasing values of intraocular pressure (IOP) due to glaucoma can prevent severe ocular diseases and ultimately, prevent loss of vision. Currently, the need for an accurate, mobile measurement of IOP that shows no correlation to central corneal thickness is unmet within the modern healthcare practices. There is a potential to utilize soundwaves as a mobile measurement method and therefore, the relationship between IOP and the reflection coefficient of sound waves is investigated. Simulations are conducted using COMSOL Multiphysics to provide theoretical confirmation of the worthiness of the experiment. An experiment is conducted to further investigate the relationship between the internal pressure of an object and its acoustic reflection coefficient. The experiment exploits the use of hydrostatic pressure to determine internal pressure, and the reflection coefficient is measured and analyzed. An initial experiment is conducted to identify the resonant frequency of the object and the optimal frequency for maximizing reflection. The experiment shows comprehensively that there is a relationship between the internal pressure of an object and its acoustic reflection coefficient, providing a confirmation of the theory that would allow mobile measurements of IOP to be conducted with the use of a smart phone.https://doi.org/10.1002/eng2.12355acoustic reflection coefficientglaucomaintraocular pressureocular hypertension
spellingShingle Matthew Soanes
Khamis Essa
Haider Butt
Testing the viability of measuring intraocular pressure using soundwaves from a smartphone
Engineering Reports
acoustic reflection coefficient
glaucoma
intraocular pressure
ocular hypertension
title Testing the viability of measuring intraocular pressure using soundwaves from a smartphone
title_full Testing the viability of measuring intraocular pressure using soundwaves from a smartphone
title_fullStr Testing the viability of measuring intraocular pressure using soundwaves from a smartphone
title_full_unstemmed Testing the viability of measuring intraocular pressure using soundwaves from a smartphone
title_short Testing the viability of measuring intraocular pressure using soundwaves from a smartphone
title_sort testing the viability of measuring intraocular pressure using soundwaves from a smartphone
topic acoustic reflection coefficient
glaucoma
intraocular pressure
ocular hypertension
url https://doi.org/10.1002/eng2.12355
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