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| Survey on household eye hygiene among primary school students in Jinshan District |
| YU Dandan, SUN Chongxiu, LI Chenchen, HAN Dongfang, MA Ruihong, WANG Lihua
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| Shanghai Jinshan Disease Center for Prevention and Control, Department of Hygiene of Food and Adolescents, Shanghai 201599, China |
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Abstract Objective To investigate the household eye hygiene among students at grades 3 to 5 in primary schools in Jinshan District, Shanghai Municipality, so as to provide insights into the management of myopia among children and adolescents. Methods Students at grades 3 to 5 in primary schools were sampled in Jinshan District using a stratified cluster sampling method from December 2021 to January 2022. The household reading environments were observed, including the height of the learning desk and chair, desk surface color and strength. The duration of reading and writing, duration of watching TV and videos, duration of outdoor activities, duration of sleep and eye use behaviors and habits after school and at weekends were investigated using questionnaires. Results A total of 330 primary school students were surveyed, including 179 boys (54.24%) and 151 girls (45.76%), and there were 36.36% grade 3 primary school students, 36.36% grade 4 students and 27.27% grade 5 students. There were 94.24% of primary school students that used the desk and chair with heights mismatched to students' heights, 25.45% that used desks with dark surface, 26.67% that used desks with light reflection, and 48.48% that used desk lamps with an illumination intensity of <300 lx. There were 56.36% of students with reading and writing duration of 1 h and longer, 15.76% with watching duration of 0.5 h and longer, 86.97% with outdoor activity duration of <1 h and 88.48% with sleep duration of <10 h after school, and 42.42% with reading and writing duration of 2 h and longer, 29.70% with watching duration of 1 hour and longer, 65.45% with outdoor activity duration of <2 h and 55.76% with sleep duration of <10 h at weekends. There were 30.91% of primary school students with 10 cm distance from chest to desk, 26.36% with 33 cm distance from eyes to books and 35.15% with 3 cm distance from fingers to pen points when reading and writing, and 35.45% with >3 m distance from TV, 40.91% with >50 cm distance from computers, and 22.73% with >40 cm distance from cell phones when watching TV or videos. Conclusions The household eye use environments remain to be improved, and there are poor eye use behaviors among primary school students at grades 3 to 5 in Jinshan District, Shanghai Municipality; notably, mismatch between the desk and chair height and students' body height and inadequate sleep are common.
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Received: 04 July 2022
Revised: 06 September 2022
Published: 16 November 2022
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