Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study

Thaissa Nazareth,1 Janaina Rocha,1,2 Ana Luiza B Scoralick,2 Diego T Dias,2 Carolina PB Gracitelli,2 Fabio N Kanadani,1,3 Tiago S Prata2,3 1Glaucoma Service, Instituto de Olhos Ciências Médicas, Belo Horizonte, Brazil; 2Ophthalmology Department, Federal University of S&atild...

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Autores principales:	Nazareth T, Rocha J, Scoralick ALB, Dias DT, Gracitelli CPB, Kanadani FN, Prata TS
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2020
Materias:	glaucoma visual field easyfield humphrey Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/648ca3e1bfa045cd871fb948ef7915a7
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spelling	oai:doaj.org-article:648ca3e1bfa045cd871fb948ef7915a72021-12-02T14:50:24ZRetinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study1177-5483https://doaj.org/article/648ca3e1bfa045cd871fb948ef7915a72020-12-01T00:00:00Zhttps://www.dovepress.com/retinal-sensitivity-thresholds-obtained-through-easyfield-and-humphrey-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Thaissa Nazareth,1 Janaina Rocha,1,2 Ana Luiza B Scoralick,2 Diego T Dias,2 Carolina PB Gracitelli,2 Fabio N Kanadani,1,3 Tiago S Prata2,3 1Glaucoma Service, Instituto de Olhos Ciências Médicas, Belo Horizonte, Brazil; 2Ophthalmology Department, Federal University of São Paulo, São Paulo, Brazil; 3Ophthalmology Department, Mayo Clinic, Jacksonville, Florida, USACorrespondence: Tiago S PrataOphthalmology Department, Federal University of São Paulo, Rua Dr João Lourenço, 713; Vila Nova Conceição, São Paulo CEP: 04508-031, BrazilTel +55 11 43019481Fax +55 11 3683-0404Email tprata0807@gmail.comObjective: To compare global retinal sensitivity thresholds obtained through the Easyfield perimeter (EF) and Humphrey visual field analyzer (HFA).Design: Observational cross-sectional study.Participants: Glaucomatous patients and glaucoma suspects enrolled between October 2018 and April 2019.Materials and Methods: All participants underwent EF (SPARK Precision) and HFA perimetry (SITA-Standard). After inclusion, demographic and ocular data were collected, including measurements of retinal nerve fiber layer (RNFL) thickness obtained from spectral-domain optical coherence tomography (SD-OCT). Global indices (mean deviation, MD; pattern standard deviation, PSD) values were compared between perimeters, and their correlation and agreement were evaluated. We used regression analysis to investigate structure-functional correlations between SD-OCT measurements and MD index of each perimeter.Results: We investigated 111 eyes from 69 patients. Mean MD (mean difference=1.49dB) and PSD values (mean difference=0.42dB) from the HFA were significantly larger than those from the EF perimeter (p< 0.001). There were significant linear correlations between EF-MD and HFA-MD (r=0.56), and EF-PSD and HFA-PSD (r=0.38; p< 0.001). We found significant non-linear associations between average RNFL thickness and MD values derived from both EF (R2=0.41) and HFA (R2=0.17) perimeters (p≤ 0.012). A difference < 2dB between EF-MD and HFA-MD was found in 53% of the eyes, while 71% of them had a difference < 1dB between EF-PSD and HFA-PSD.Conclusion: While we found a moderate correlation and a small mean sensitivity difference between test results, EF’s correlation with structural measurements was at least comparable to that of the HFA. Our findings suggest that although these tests should not be used interchangeably, EF SPARK Precision could be used as an alternative for functional assessment in eyes with mild glaucoma.Keywords: glaucoma, visual field, Easyfield, HumphreyNazareth TRocha JScoralick ALBDias DTGracitelli CPBKanadani FNPrata TSDove Medical Pressarticleglaucomavisual fieldeasyfieldhumphreyOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 14, Pp 4201-4207 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	glaucoma visual field easyfield humphrey Ophthalmology RE1-994
spellingShingle	glaucoma visual field easyfield humphrey Ophthalmology RE1-994 Nazareth T Rocha J Scoralick ALB Dias DT Gracitelli CPB Kanadani FN Prata TS Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study
description	Thaissa Nazareth,1 Janaina Rocha,1,2 Ana Luiza B Scoralick,2 Diego T Dias,2 Carolina PB Gracitelli,2 Fabio N Kanadani,1,3 Tiago S Prata2,3 1Glaucoma Service, Instituto de Olhos Ciências Médicas, Belo Horizonte, Brazil; 2Ophthalmology Department, Federal University of São Paulo, São Paulo, Brazil; 3Ophthalmology Department, Mayo Clinic, Jacksonville, Florida, USACorrespondence: Tiago S PrataOphthalmology Department, Federal University of São Paulo, Rua Dr João Lourenço, 713; Vila Nova Conceição, São Paulo CEP: 04508-031, BrazilTel +55 11 43019481Fax +55 11 3683-0404Email tprata0807@gmail.comObjective: To compare global retinal sensitivity thresholds obtained through the Easyfield perimeter (EF) and Humphrey visual field analyzer (HFA).Design: Observational cross-sectional study.Participants: Glaucomatous patients and glaucoma suspects enrolled between October 2018 and April 2019.Materials and Methods: All participants underwent EF (SPARK Precision) and HFA perimetry (SITA-Standard). After inclusion, demographic and ocular data were collected, including measurements of retinal nerve fiber layer (RNFL) thickness obtained from spectral-domain optical coherence tomography (SD-OCT). Global indices (mean deviation, MD; pattern standard deviation, PSD) values were compared between perimeters, and their correlation and agreement were evaluated. We used regression analysis to investigate structure-functional correlations between SD-OCT measurements and MD index of each perimeter.Results: We investigated 111 eyes from 69 patients. Mean MD (mean difference=1.49dB) and PSD values (mean difference=0.42dB) from the HFA were significantly larger than those from the EF perimeter (p< 0.001). There were significant linear correlations between EF-MD and HFA-MD (r=0.56), and EF-PSD and HFA-PSD (r=0.38; p< 0.001). We found significant non-linear associations between average RNFL thickness and MD values derived from both EF (R2=0.41) and HFA (R2=0.17) perimeters (p≤ 0.012). A difference < 2dB between EF-MD and HFA-MD was found in 53% of the eyes, while 71% of them had a difference < 1dB between EF-PSD and HFA-PSD.Conclusion: While we found a moderate correlation and a small mean sensitivity difference between test results, EF’s correlation with structural measurements was at least comparable to that of the HFA. Our findings suggest that although these tests should not be used interchangeably, EF SPARK Precision could be used as an alternative for functional assessment in eyes with mild glaucoma.Keywords: glaucoma, visual field, Easyfield, Humphrey
format	article
author	Nazareth T Rocha J Scoralick ALB Dias DT Gracitelli CPB Kanadani FN Prata TS
author_facet	Nazareth T Rocha J Scoralick ALB Dias DT Gracitelli CPB Kanadani FN Prata TS
author_sort	Nazareth T
title	Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study
title_short	Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study
title_full	Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study
title_fullStr	Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study
title_full_unstemmed	Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study
title_sort	retinal sensitivity thresholds obtained through easyfield and humphrey perimeters in eyes with glaucoma: a cross-sectional comparative study
publisher	Dove Medical Press
publishDate	2020
url	https://doaj.org/article/648ca3e1bfa045cd871fb948ef7915a7
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Retinal Sensitivity Thresholds Obtained Through Easyfield and Humphrey Perimeters in Eyes with Glaucoma: A Cross-Sectional Comparative Study

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