Quality and learning curve of handheld versus stand-alone non-mydriatic cameras

Mariya Gosheva,1 Christian Klameth,1 Lars Norrenberg,2 Lucien Clin,3 Johannes Dietter,4 Wadood Haq,4 Iliya V Ivanov,4–6 Focke Ziemssen,1 Martin A Leitritz7 1University Eye Hospital, Centre for Ophthalmology, Tuebingen, 2Department of Obstetrics and Gynecology, Klinikum am Steinenberg, Dis...

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Autores principales:	Gosheva M, Klameth C, Norrenberg L, Clin L, Dietter J, Haq W, Ivanov IV, Ziemssen F, Leitritz MA
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2017
Materias:	Imaging non-mydriatic handheld camera learning curve image quality Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/6ec012a5ea4a4f86b7c7f54030358d2d
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spelling	oai:doaj.org-article:6ec012a5ea4a4f86b7c7f54030358d2d2021-12-02T00:47:19ZQuality and learning curve of handheld versus stand-alone non-mydriatic cameras1177-5483https://doaj.org/article/6ec012a5ea4a4f86b7c7f54030358d2d2017-08-01T00:00:00Zhttps://www.dovepress.com/quality-and-learning-curve-of-handheld-versus-stand-alone-non-mydriati-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Mariya Gosheva,1 Christian Klameth,1 Lars Norrenberg,2 Lucien Clin,3 Johannes Dietter,4 Wadood Haq,4 Iliya V Ivanov,4–6 Focke Ziemssen,1 Martin A Leitritz7 1University Eye Hospital, Centre for Ophthalmology, Tuebingen, 2Department of Obstetrics and Gynecology, Klinikum am Steinenberg, District Hospital Reutlingen, Reutlingen, 3School of Informatics, Reutlingen University, 4Division of Experimental Ophthalmology, Centre for Ophthalmology, Institute for Ophthalmic Research, 5Vision Rehabilitation Research Unit, Centre for Ophthalmology, University Eye Hospital, Eberhard Karls, 6ZEISS Vision Science Lab, Institute for Ophthalmic Research, Centre for Ophthalmology, University of Tuebingen, 7Section for Experimental Ophthalmic Surgery and Refractive Surgery, University Eye Hospital, Centre for Ophthalmology, Tuebingen, Germany Purpose: Nowadays, complex digital imaging systems allow detailed retinal imaging without dilating patients’ pupils. These so-called non-mydriatic cameras have advantages in common circumstances (eg, for screening or emergency purposes) but present limitations in terms of image quality and field of view. We compare the usefulness of two non-mydriatic camera systems (ie, a handheld versus a stand-alone device) for fundus imaging. The primary outcome was image quality. The secondary outcomes were learning effects and quality grade-influencing factors.Methods: The imaging procedures followed standard protocol and were all performed by the same investigator. Camera 1 (DRS®) was a stand-alone system, while Camera 2 (Smartscope® PRO) was a mobile system. In order to evaluate possible learning effects, we selected an examiner with no prior training in the use of these systems. The images were graded separately by two experienced and “blinded” ophthalmologists following a defined protocol.Results: In total, 211 people were enrolled. Quality grade comparisons showed significantly better grades for Camera 1. Both systems achieved better quality grades for macular images than for disc-centered images. No remarkable learning effects could be demonstrated.Conclusions: Both camera systems are useful for fundus imaging. The greater mobility of Camera 2 was associated with lower image quality. For screening scenarios or telemedicine, it must be determined whether image quality or mobility is more important. Keywords: imaging, non-mydriatic, handheld camera, learning curveGosheva MKlameth CNorrenberg LClin LDietter JHaq WIvanov IVZiemssen FLeitritz MADove Medical PressarticleImagingnon-mydriatichandheld cameralearning curveimage qualityOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 11, Pp 1601-1606 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Imaging non-mydriatic handheld camera learning curve image quality Ophthalmology RE1-994
spellingShingle	Imaging non-mydriatic handheld camera learning curve image quality Ophthalmology RE1-994 Gosheva M Klameth C Norrenberg L Clin L Dietter J Haq W Ivanov IV Ziemssen F Leitritz MA Quality and learning curve of handheld versus stand-alone non-mydriatic cameras
description	Mariya Gosheva,1 Christian Klameth,1 Lars Norrenberg,2 Lucien Clin,3 Johannes Dietter,4 Wadood Haq,4 Iliya V Ivanov,4–6 Focke Ziemssen,1 Martin A Leitritz7 1University Eye Hospital, Centre for Ophthalmology, Tuebingen, 2Department of Obstetrics and Gynecology, Klinikum am Steinenberg, District Hospital Reutlingen, Reutlingen, 3School of Informatics, Reutlingen University, 4Division of Experimental Ophthalmology, Centre for Ophthalmology, Institute for Ophthalmic Research, 5Vision Rehabilitation Research Unit, Centre for Ophthalmology, University Eye Hospital, Eberhard Karls, 6ZEISS Vision Science Lab, Institute for Ophthalmic Research, Centre for Ophthalmology, University of Tuebingen, 7Section for Experimental Ophthalmic Surgery and Refractive Surgery, University Eye Hospital, Centre for Ophthalmology, Tuebingen, Germany Purpose: Nowadays, complex digital imaging systems allow detailed retinal imaging without dilating patients’ pupils. These so-called non-mydriatic cameras have advantages in common circumstances (eg, for screening or emergency purposes) but present limitations in terms of image quality and field of view. We compare the usefulness of two non-mydriatic camera systems (ie, a handheld versus a stand-alone device) for fundus imaging. The primary outcome was image quality. The secondary outcomes were learning effects and quality grade-influencing factors.Methods: The imaging procedures followed standard protocol and were all performed by the same investigator. Camera 1 (DRS®) was a stand-alone system, while Camera 2 (Smartscope® PRO) was a mobile system. In order to evaluate possible learning effects, we selected an examiner with no prior training in the use of these systems. The images were graded separately by two experienced and “blinded” ophthalmologists following a defined protocol.Results: In total, 211 people were enrolled. Quality grade comparisons showed significantly better grades for Camera 1. Both systems achieved better quality grades for macular images than for disc-centered images. No remarkable learning effects could be demonstrated.Conclusions: Both camera systems are useful for fundus imaging. The greater mobility of Camera 2 was associated with lower image quality. For screening scenarios or telemedicine, it must be determined whether image quality or mobility is more important. Keywords: imaging, non-mydriatic, handheld camera, learning curve
format	article
author	Gosheva M Klameth C Norrenberg L Clin L Dietter J Haq W Ivanov IV Ziemssen F Leitritz MA
author_facet	Gosheva M Klameth C Norrenberg L Clin L Dietter J Haq W Ivanov IV Ziemssen F Leitritz MA
author_sort	Gosheva M
title	Quality and learning curve of handheld versus stand-alone non-mydriatic cameras
title_short	Quality and learning curve of handheld versus stand-alone non-mydriatic cameras
title_full	Quality and learning curve of handheld versus stand-alone non-mydriatic cameras
title_fullStr	Quality and learning curve of handheld versus stand-alone non-mydriatic cameras
title_full_unstemmed	Quality and learning curve of handheld versus stand-alone non-mydriatic cameras
title_sort	quality and learning curve of handheld versus stand-alone non-mydriatic cameras
publisher	Dove Medical Press
publishDate	2017
url	https://doaj.org/article/6ec012a5ea4a4f86b7c7f54030358d2d
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Quality and learning curve of handheld versus stand-alone non-mydriatic cameras

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