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Paper Abstract and Keywords
Presentation 2020-12-22 10:30
Questionnaire survey on visual acuity of undergraduate students under remote learning due to the spread of COVID-19 - Examination of the effect of smartphone screen-viewing time on visual acuity-
Yukyu Araragi (Shimane Univ.), Hiroyuki Ito (Kyushu Univ.) HIP2020-53
Abstract (in Japanese) (See Japanese page) 
(in English) Myopia is the most common disorder in human eyes. Previous studies have reported that decrease in outdoor activity time was one of the factors of myopia. We performed a questionnaire survey on reduction in visual acuity of Japanese undergraduate students under remote learning due to the spread of COVID-19. Fifty percent of 112 undergraduate students reported feeling or having the test results of reduced visual acuity. A multi-regression analysis showed a significant tendency of feeling or having the test results of reduced visual acuity due to increased smartphone screen-viewing time. χ2 tests showed that more than three hours of smartphone screen-viewing time led to the feeling of reduced visual acuity. These results suggest that feeling of reduced visual acuity might be attributed to the extended smartphone screen-viewing time, not to the reduced outdoor time.
Keyword (in Japanese) (See Japanese page) 
(in English) Visual acuity / Myopia / COVID-19 / Smartphone / Undergraduate and graduate students / Remote classes / State of emergency / Outdoor time  
Reference Info. IEICE Tech. Rep., vol. 120, no. 306, HIP2020-53, pp. 1-3, Dec. 2020.
Paper # HIP2020-53 
Date of Issue 2020-12-15 (HIP) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee HIP  
Conference Date 2020-12-22 - 2020-12-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HIP 
Conference Code 2020-12-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Questionnaire survey on visual acuity of undergraduate students under remote learning due to the spread of COVID-19 - Examination of the effect of smartphone screen-viewing time on visual acuity- 
Sub Title (in English)  
Keyword(1) Visual acuity  
Keyword(2) Myopia  
Keyword(3) COVID-19  
Keyword(4) Smartphone  
Keyword(5) Undergraduate and graduate students  
Keyword(6) Remote classes  
Keyword(7) State of emergency  
Keyword(8) Outdoor time  
1st Author's Name Yukyu Araragi  
1st Author's Affiliation Shimane University (Shimane Univ.)
2nd Author's Name Hiroyuki Ito  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2020-12-22 10:30:00 
Presentation Time 30 minutes 
Registration for HIP 
Paper # HIP2020-53 
Volume (vol) vol.120 
Number (no) no.306 
Page pp.1-3 
#Pages 3 
Date of Issue 2020-12-15 (HIP) 

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