Home-based visual field test for glaucoma screening comparison with Humphrey perimeter

Stylianos Tsapakis, Dimitrios Papaconstantinou, Andreas Diagourtas, Stylianos Kandarakis, Konstantinos Droutsas, Konstantinos Andreanos, Dimitrios Brouzas 1st Department of Ophthalmology, National and Kapodistrian University of Athens, Athens, Greece Purpose: To present a home-based visual field e...

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Autores principales:	Tsapakis S, Papaconstantinou D, Diagourtas A, Kandarakis S, Droutsas K, Andreanos K, Brouzas D
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	Glaucoma online visual field virtual reality teleophthalmology telemedicine Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/c8fb172061f84b64b867971022372680
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spelling	oai:doaj.org-article:c8fb172061f84b64b8679710223726802021-12-02T00:34:44ZHome-based visual field test for glaucoma screening comparison with Humphrey perimeter1177-5483https://doaj.org/article/c8fb172061f84b64b8679710223726802018-12-01T00:00:00Zhttps://www.dovepress.com/home-based-visual-field-test-for-glaucoma-screening-comparison-with-hu-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Stylianos Tsapakis, Dimitrios Papaconstantinou, Andreas Diagourtas, Stylianos Kandarakis, Konstantinos Droutsas, Konstantinos Andreanos, Dimitrios Brouzas 1st Department of Ophthalmology, National and Kapodistrian University of Athens, Athens, Greece Purpose: To present a home-based visual field examination method using a PC monitor or virtual reality glasses and evaluate the reliability of the method by comparing the results with those of the Humphrey perimeter, in order to assess the possibility of glaucoma screening through the Internet.Materials and methods: Software implementing a supra-threshold algorithm for the central 24° (52 points) of visual field at three threshold levels: 1) -4 db, 2) -8 db, and 3) -12 db, from the age-expected sensitivity was used for the purpose of testing. The software uses the web camera as a “virtual photometer” in order to detect room luminosity and allows self-testing using a computer monitor or virtual reality glasses using an Android smartphone with a 6-inch display. The software includes an expert system to analyze the visual field image and validate the reliability of the results. It also allows the physician to combine the results from two or more tests into a single test in order to achieve higher statistical accuracy of the final result. A total of ten patients, 20 eyes tested×52 points per eye=1,040 visual field test points, were compared point to point to those obtained using the Humphrey perimeter for the same patients, as they appeared randomly and consecutively at the glaucoma department within hours.Results: Good receiver operating characteristic/area under the curve coefficient was found, ranging from 0.762 to 0.837 (P<0.001). Sensitivity ranged from 0.637 to 0.942, and specificity ranged from 0.735 to 0.497.Conclusion: The home-based visual field test exhibits a reasonable receiver operating characteristic curve when compared to the Humphrey perimeter, without the need of specialized equipment. The test may be useful for glaucoma screening. Keywords: glaucoma, screening, internet, computer monitor, android smart-phone, online visual field, virtual reality, teleophthalmology, telemedicine Tsapakis SPapaconstantinou DDiagourtas AKandarakis SDroutsas KAndreanos KBrouzas DDove Medical PressarticleGlaucomaonline visual fieldvirtual realityteleophthalmologytelemedicineOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 12, Pp 2597-2606 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Glaucoma online visual field virtual reality teleophthalmology telemedicine Ophthalmology RE1-994
spellingShingle	Glaucoma online visual field virtual reality teleophthalmology telemedicine Ophthalmology RE1-994 Tsapakis S Papaconstantinou D Diagourtas A Kandarakis S Droutsas K Andreanos K Brouzas D Home-based visual field test for glaucoma screening comparison with Humphrey perimeter
description	Stylianos Tsapakis, Dimitrios Papaconstantinou, Andreas Diagourtas, Stylianos Kandarakis, Konstantinos Droutsas, Konstantinos Andreanos, Dimitrios Brouzas 1st Department of Ophthalmology, National and Kapodistrian University of Athens, Athens, Greece Purpose: To present a home-based visual field examination method using a PC monitor or virtual reality glasses and evaluate the reliability of the method by comparing the results with those of the Humphrey perimeter, in order to assess the possibility of glaucoma screening through the Internet.Materials and methods: Software implementing a supra-threshold algorithm for the central 24° (52 points) of visual field at three threshold levels: 1) -4 db, 2) -8 db, and 3) -12 db, from the age-expected sensitivity was used for the purpose of testing. The software uses the web camera as a “virtual photometer” in order to detect room luminosity and allows self-testing using a computer monitor or virtual reality glasses using an Android smartphone with a 6-inch display. The software includes an expert system to analyze the visual field image and validate the reliability of the results. It also allows the physician to combine the results from two or more tests into a single test in order to achieve higher statistical accuracy of the final result. A total of ten patients, 20 eyes tested×52 points per eye=1,040 visual field test points, were compared point to point to those obtained using the Humphrey perimeter for the same patients, as they appeared randomly and consecutively at the glaucoma department within hours.Results: Good receiver operating characteristic/area under the curve coefficient was found, ranging from 0.762 to 0.837 (P<0.001). Sensitivity ranged from 0.637 to 0.942, and specificity ranged from 0.735 to 0.497.Conclusion: The home-based visual field test exhibits a reasonable receiver operating characteristic curve when compared to the Humphrey perimeter, without the need of specialized equipment. The test may be useful for glaucoma screening. Keywords: glaucoma, screening, internet, computer monitor, android smart-phone, online visual field, virtual reality, teleophthalmology, telemedicine
format	article
author	Tsapakis S Papaconstantinou D Diagourtas A Kandarakis S Droutsas K Andreanos K Brouzas D
author_facet	Tsapakis S Papaconstantinou D Diagourtas A Kandarakis S Droutsas K Andreanos K Brouzas D
author_sort	Tsapakis S
title	Home-based visual field test for glaucoma screening comparison with Humphrey perimeter
title_short	Home-based visual field test for glaucoma screening comparison with Humphrey perimeter
title_full	Home-based visual field test for glaucoma screening comparison with Humphrey perimeter
title_fullStr	Home-based visual field test for glaucoma screening comparison with Humphrey perimeter
title_full_unstemmed	Home-based visual field test for glaucoma screening comparison with Humphrey perimeter
title_sort	home-based visual field test for glaucoma screening comparison with humphrey perimeter
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/c8fb172061f84b64b867971022372680
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Home-based visual field test for glaucoma screening comparison with Humphrey perimeter

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