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Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging

Background: Ultra-widefield fundus imaging is widely used for obtaining wide angle images of the retina in one single image. Although it has a potential to obtain a wide area of retinal photographs, images are often obstructed by eyelashes or eye lids. In this study, we used a newly invented eyelid...

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Autores principales: Ozawa, Nobuhiro, Mori, Kiwako, Katada, Yusaku, Tsubota, Kazuo, Kurihara, Toshihide
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761601/
https://www.ncbi.nlm.nih.gov/pubmed/33276609
http://dx.doi.org/10.3390/life10120323
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author Ozawa, Nobuhiro
Mori, Kiwako
Katada, Yusaku
Tsubota, Kazuo
Kurihara, Toshihide
author_facet Ozawa, Nobuhiro
Mori, Kiwako
Katada, Yusaku
Tsubota, Kazuo
Kurihara, Toshihide
author_sort Ozawa, Nobuhiro
collection PubMed
description Background: Ultra-widefield fundus imaging is widely used for obtaining wide angle images of the retina in one single image. Although it has a potential to obtain a wide area of retinal photographs, images are often obstructed by eyelashes or eye lids. In this study, we used a newly invented eyelid clamper, which can keep an eye open without touching conjunctiva or lid margin, to assess the efficacy in clinical use by comparing with conventional tape fixation. Methods: Ultra-widefield fundus images were captured with an ultra-widefield imaging system in 19 patients who visited to the outpatient clinic of Department of Ophthalmology, Keio University Hospital with the eyelid clamper or a conventional tape fixation. The area of imaged retinas was outlined and quantified with pixels. After obtaining images, patients answered a questionnaire. Results: The average number of pixels in total areas with the eyelid clamper or with tape fixation were 4.31 ± 0.35 and 4.32 ± 0.34 mega pixels, respectively, showing no significant difference between the groups (p = 0.889). The average face pain scale of the eyelid clamper was 1.13 on a scale of 0 to 5. The number of patients who did not feel any pain was nine (47.4%). Conclusions: The eyelid clamper can be applied in clinical setting and can better support obtaining sufficiently wide fundus images compared to a conventional tape fixation.
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spelling pubmed-77616012020-12-26 Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging Ozawa, Nobuhiro Mori, Kiwako Katada, Yusaku Tsubota, Kazuo Kurihara, Toshihide Life (Basel) Article Background: Ultra-widefield fundus imaging is widely used for obtaining wide angle images of the retina in one single image. Although it has a potential to obtain a wide area of retinal photographs, images are often obstructed by eyelashes or eye lids. In this study, we used a newly invented eyelid clamper, which can keep an eye open without touching conjunctiva or lid margin, to assess the efficacy in clinical use by comparing with conventional tape fixation. Methods: Ultra-widefield fundus images were captured with an ultra-widefield imaging system in 19 patients who visited to the outpatient clinic of Department of Ophthalmology, Keio University Hospital with the eyelid clamper or a conventional tape fixation. The area of imaged retinas was outlined and quantified with pixels. After obtaining images, patients answered a questionnaire. Results: The average number of pixels in total areas with the eyelid clamper or with tape fixation were 4.31 ± 0.35 and 4.32 ± 0.34 mega pixels, respectively, showing no significant difference between the groups (p = 0.889). The average face pain scale of the eyelid clamper was 1.13 on a scale of 0 to 5. The number of patients who did not feel any pain was nine (47.4%). Conclusions: The eyelid clamper can be applied in clinical setting and can better support obtaining sufficiently wide fundus images compared to a conventional tape fixation. MDPI 2020-12-02 /pmc/articles/PMC7761601/ /pubmed/33276609 http://dx.doi.org/10.3390/life10120323 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ozawa, Nobuhiro
Mori, Kiwako
Katada, Yusaku
Tsubota, Kazuo
Kurihara, Toshihide
Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging
title Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging
title_full Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging
title_fullStr Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging
title_full_unstemmed Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging
title_short Efficacy of the Newly Invented Eyelid Clamper in Ultra-Widefield Fundus Imaging
title_sort efficacy of the newly invented eyelid clamper in ultra-widefield fundus imaging
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7761601/
https://www.ncbi.nlm.nih.gov/pubmed/33276609
http://dx.doi.org/10.3390/life10120323
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