Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial

The fact that outdoor light environment is an important suppressive factor against myopia led us to invent violet light-transmitting eyeglasses (VL glasses) which can transmit violet light (VL), 360–400 nm in wavelength, for the suppression of myopia, and can meanwhile block harmful ultraviolet wave...

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Autores principales:	Kiwako Mori, Hidemasa Torii, Yutaka Hara, Michiko Hara, Erisa Yotsukura, Akiko Hanyuda, Kazuno Negishi, Toshihide Kurihara, Kazuo Tsubota
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	violet light eyeglasses myopia axial length refraction myopia control Medicine R
Acceso en línea:	https://doaj.org/article/f46083d25d5248bcbb271f0c240c62b4
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id	oai:doaj.org-article:f46083d25d5248bcbb271f0c240c62b4
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spelling	oai:doaj.org-article:f46083d25d5248bcbb271f0c240c62b42021-11-25T18:03:04ZEffect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial10.3390/jcm102254622077-0383https://doaj.org/article/f46083d25d5248bcbb271f0c240c62b42021-11-01T00:00:00Zhttps://www.mdpi.com/2077-0383/10/22/5462https://doaj.org/toc/2077-0383The fact that outdoor light environment is an important suppressive factor against myopia led us to invent violet light-transmitting eyeglasses (VL glasses) which can transmit violet light (VL), 360–400 nm in wavelength, for the suppression of myopia, and can meanwhile block harmful ultraviolet waves from sunlight. The current study is a double-blinded randomized clinical trial to investigate the myopia-suppressive effect of VL glasses compared to conventional eyeglasses (placebo glasses) that do not transmit VL. The subjects were children aged from 6 to 12 years old, the population in which myopia progression is generally accelerated, and the myopia suppressive effect was followed up for two years in a city in Japan. Periodical ophthalmic examinations, interviews, and measurements of reflection and axial length under mydriasis were performed at the initial visit (the baseline) and at 1, 6, 12, 18, and 24 months. The mean change in axial length in the VL glasses group was significantly smaller than in the placebo glasses group when time for near-work was less than 180 min and when the subjects were limited to those who had never used eyeglasses before this trial (<i>p</i> < 0.01); however, this change was not significant without subgrouping. The suppressive rate for axial elongation in the VL glasses group was 21.4% for two years.Kiwako MoriHidemasa ToriiYutaka HaraMichiko HaraErisa YotsukuraAkiko HanyudaKazuno NegishiToshihide KuriharaKazuo TsubotaMDPI AGarticleviolet lighteyeglassesmyopiaaxial lengthrefractionmyopia controlMedicineRENJournal of Clinical Medicine, Vol 10, Iss 5462, p 5462 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	violet light eyeglasses myopia axial length refraction myopia control Medicine R
spellingShingle	violet light eyeglasses myopia axial length refraction myopia control Medicine R Kiwako Mori Hidemasa Torii Yutaka Hara Michiko Hara Erisa Yotsukura Akiko Hanyuda Kazuno Negishi Toshihide Kurihara Kazuo Tsubota Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial
description	The fact that outdoor light environment is an important suppressive factor against myopia led us to invent violet light-transmitting eyeglasses (VL glasses) which can transmit violet light (VL), 360–400 nm in wavelength, for the suppression of myopia, and can meanwhile block harmful ultraviolet waves from sunlight. The current study is a double-blinded randomized clinical trial to investigate the myopia-suppressive effect of VL glasses compared to conventional eyeglasses (placebo glasses) that do not transmit VL. The subjects were children aged from 6 to 12 years old, the population in which myopia progression is generally accelerated, and the myopia suppressive effect was followed up for two years in a city in Japan. Periodical ophthalmic examinations, interviews, and measurements of reflection and axial length under mydriasis were performed at the initial visit (the baseline) and at 1, 6, 12, 18, and 24 months. The mean change in axial length in the VL glasses group was significantly smaller than in the placebo glasses group when time for near-work was less than 180 min and when the subjects were limited to those who had never used eyeglasses before this trial (<i>p</i> < 0.01); however, this change was not significant without subgrouping. The suppressive rate for axial elongation in the VL glasses group was 21.4% for two years.
format	article
author	Kiwako Mori Hidemasa Torii Yutaka Hara Michiko Hara Erisa Yotsukura Akiko Hanyuda Kazuno Negishi Toshihide Kurihara Kazuo Tsubota
author_facet	Kiwako Mori Hidemasa Torii Yutaka Hara Michiko Hara Erisa Yotsukura Akiko Hanyuda Kazuno Negishi Toshihide Kurihara Kazuo Tsubota
author_sort	Kiwako Mori
title	Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial
title_short	Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial
title_full	Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial
title_fullStr	Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial
title_full_unstemmed	Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial
title_sort	effect of violet light-transmitting eyeglasses on axial elongation in myopic children: a randomized controlled trial
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f46083d25d5248bcbb271f0c240c62b4
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Effect of Violet Light-Transmitting Eyeglasses on Axial Elongation in Myopic Children: A Randomized Controlled Trial

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