Reduction in Accommodative Response of Schoolchildren by a Double-Mirror System

doi:10.3390/ijerph18199951

中山醫學大學機構典藏 CSMUIR > 中山醫學大學研究成果 > 期刊論文 > Item 310902500/23858

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/23858

Title:	Reduction in Accommodative Response of Schoolchildren by a Double-Mirror System
Authors:	Yeh, SM;Lo, CC;Lee, CH;Chen, YJ;Lin, FC;Huang, SY
Keywords:	accommodative response;double-mirror system (DMS);accommodative relaxation;myopia control
Date:	2021
Issue Date:	2022-08-05T09:44:01Z (UTC)
Publisher:	MDPI
Abstract:	Purpose: This study first proposed the application of a double-mirror system (DMS) to extend viewing distance and investigate the accommodative response of schoolchildren under a DMS. Method: Fifty-seven subjects aged between 7 and 12 years old were recruited in this study, and the experiment was divided into two stages. The first stage consisted of a case history inquiry, a refraction state, and a visual function examination. In the second stage, the subjects gazed at an object at distances of 0.4 m, 2.285 m, and through a DMS, respectively, and their accommodative responses were measured using an open-field autorefractor. Results: There was no significant difference in the schoolchildren's accommodative response between subjects gazing at an object at 2.285 m (0.14 +/- 0.35 D, p > 0.05) and those gazing at it through a DMS (0.20 +/- 0.35 D). However, their accommodative response showed a significant difference between subjects gazing at an object at 0.4 m and 2.285 m and those gazing at it at 0.4 m and through a DMS. Conclusion: In this experiment, the results of the children's accommodative response measured at 2.285 m or through a DMS are very similar. The viewing distance can be extended by a DMS, resulting in accommodative relaxation. This result may have potential applications in myopia control.
URI:	http://dx.doi.org/10.3390/ijerph18199951 https://www.webofscience.com/wos/woscc/full-record/WOS:000706971600001 https://ir.csmu.edu.tw:8080/handle/310902500/23858
Relation:	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH ,2021,v18,issue 19
Appears in Collections:	[中山醫學大學研究成果] 期刊論文

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