Training time and quality of smartphone-based anterior segment screening in rural India

Cassie A Ludwig,1 Megan Newsom,1 Alexandre Jais,1 David J Myung,1,2 Somasheila I Murthy,3 Robert T Chang1 1Department of Ophthalmology, The Byers Eye Institute, Stanford University School of Medicine, 2Department of Ophthalmology, VA Palo Alto Health Care System, Palo Alto, CA, USA; 3Cornea and Ante...

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Autores principales:	Ludwig CA, Newsom MR, Jais A, Myung DJ, Murthy SI, Chang RT
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2017
Materias:	EyeGo macrolens screening usability smartphone adapter Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/2df9e9088f6e4e5d935529121715841f
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spelling	oai:doaj.org-article:2df9e9088f6e4e5d935529121715841f2021-12-02T02:36:16ZTraining time and quality of smartphone-based anterior segment screening in rural India1177-5483https://doaj.org/article/2df9e9088f6e4e5d935529121715841f2017-07-01T00:00:00Zhttps://www.dovepress.com/training-time-and-quality-of-smartphone-based-anterior-segment-screeni-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Cassie A Ludwig,1 Megan Newsom,1 Alexandre Jais,1 David J Myung,1,2 Somasheila I Murthy,3 Robert T Chang1 1Department of Ophthalmology, The Byers Eye Institute, Stanford University School of Medicine, 2Department of Ophthalmology, VA Palo Alto Health Care System, Palo Alto, CA, USA; 3Cornea and Anterior Segment Service, L V Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India Objective: We aimed at evaluating the ability of individuals without ophthalmologic training to quickly capture high-quality images of the cornea by using a smartphone and low-cost anterior segment imaging adapter (the “EyeGo” prototype). Methods: Seven volunteers photographed 1,502 anterior segments from 751 high school students in Varni, India, by using an iPhone 5S with an attached EyeGo adapter. Primary outcome measures were median photograph quality of the cornea and anterior segment of the eye (validated Fundus Photography vs Ophthalmoscopy Trial Outcomes in the Emergency Department [FOTO-ED] study; 1–5 scale; 5, best) and the time required to take each photograph. Volunteers were surveyed on their familiarity with using a smartphone (1–5 scale; 5, very comfortable) and comfort in assessing problems with the eye (1–5 scale; 5, very comfortable). Binomial logistic regression was performed using image quality (low quality: <4; high quality: ≥4) as the dependent variable and age, comfort using a smartphone, and comfort in assessing problems with the eye as independent variables. Results: Six of the seven volunteers captured high-quality (median ≥4/5) images with a median time of ≤25 seconds per eye for all the eyes screened. Four of the seven volunteers demonstrated significant reductions in time to acquire photographs (P1=0.01, P5=0.01, P6=0.01, and P7=0.01), and three of the seven volunteers demonstrated significant improvements in the quality of photographs between the first 100 and last 100 eyes screened (P1<0.001, P2<0.001, and P6<0.01). Self-reported comfort using a smartphone (odds ratio [OR] =1.25; 95% CI =1.13 to 1.39) and self-reported comfort diagnosing eye conditions (OR =1.17; 95% CI =1.07 to 1.29) were significantly associated with an ability to take a high-quality image (≥4/5). There was a nonsignificant association between younger age and ability to take a high-quality image. Conclusion: Individuals without ophthalmic training were able to quickly capture a high-quality magnified view of the anterior segment of the eye by using a smartphone with an attached imaging adapter. Keywords: EyeGo, macrolens, screening, usability, smartphone, adapter, paxos, healthy scholarsLudwig CANewsom MRJais AMyung DJMurthy SIChang RTDove Medical PressarticleEyeGomacrolensscreeningusabilitysmartphoneadapterOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 11, Pp 1301-1307 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	EyeGo macrolens screening usability smartphone adapter Ophthalmology RE1-994
spellingShingle	EyeGo macrolens screening usability smartphone adapter Ophthalmology RE1-994 Ludwig CA Newsom MR Jais A Myung DJ Murthy SI Chang RT Training time and quality of smartphone-based anterior segment screening in rural India
description	Cassie A Ludwig,1 Megan Newsom,1 Alexandre Jais,1 David J Myung,1,2 Somasheila I Murthy,3 Robert T Chang1 1Department of Ophthalmology, The Byers Eye Institute, Stanford University School of Medicine, 2Department of Ophthalmology, VA Palo Alto Health Care System, Palo Alto, CA, USA; 3Cornea and Anterior Segment Service, L V Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India Objective: We aimed at evaluating the ability of individuals without ophthalmologic training to quickly capture high-quality images of the cornea by using a smartphone and low-cost anterior segment imaging adapter (the “EyeGo” prototype). Methods: Seven volunteers photographed 1,502 anterior segments from 751 high school students in Varni, India, by using an iPhone 5S with an attached EyeGo adapter. Primary outcome measures were median photograph quality of the cornea and anterior segment of the eye (validated Fundus Photography vs Ophthalmoscopy Trial Outcomes in the Emergency Department [FOTO-ED] study; 1–5 scale; 5, best) and the time required to take each photograph. Volunteers were surveyed on their familiarity with using a smartphone (1–5 scale; 5, very comfortable) and comfort in assessing problems with the eye (1–5 scale; 5, very comfortable). Binomial logistic regression was performed using image quality (low quality: <4; high quality: ≥4) as the dependent variable and age, comfort using a smartphone, and comfort in assessing problems with the eye as independent variables. Results: Six of the seven volunteers captured high-quality (median ≥4/5) images with a median time of ≤25 seconds per eye for all the eyes screened. Four of the seven volunteers demonstrated significant reductions in time to acquire photographs (P1=0.01, P5=0.01, P6=0.01, and P7=0.01), and three of the seven volunteers demonstrated significant improvements in the quality of photographs between the first 100 and last 100 eyes screened (P1<0.001, P2<0.001, and P6<0.01). Self-reported comfort using a smartphone (odds ratio [OR] =1.25; 95% CI =1.13 to 1.39) and self-reported comfort diagnosing eye conditions (OR =1.17; 95% CI =1.07 to 1.29) were significantly associated with an ability to take a high-quality image (≥4/5). There was a nonsignificant association between younger age and ability to take a high-quality image. Conclusion: Individuals without ophthalmic training were able to quickly capture a high-quality magnified view of the anterior segment of the eye by using a smartphone with an attached imaging adapter. Keywords: EyeGo, macrolens, screening, usability, smartphone, adapter, paxos, healthy scholars
format	article
author	Ludwig CA Newsom MR Jais A Myung DJ Murthy SI Chang RT
author_facet	Ludwig CA Newsom MR Jais A Myung DJ Murthy SI Chang RT
author_sort	Ludwig CA
title	Training time and quality of smartphone-based anterior segment screening in rural India
title_short	Training time and quality of smartphone-based anterior segment screening in rural India
title_full	Training time and quality of smartphone-based anterior segment screening in rural India
title_fullStr	Training time and quality of smartphone-based anterior segment screening in rural India
title_full_unstemmed	Training time and quality of smartphone-based anterior segment screening in rural India
title_sort	training time and quality of smartphone-based anterior segment screening in rural india
publisher	Dove Medical Press
publishDate	2017
url	https://doaj.org/article/2df9e9088f6e4e5d935529121715841f
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Training time and quality of smartphone-based anterior segment screening in rural India

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