June 2015
Volume 56, Issue 7
Free
ARVO Annual Meeting Abstract  |   June 2015
Pilot Study of a Novel Classroom Designed to Prevent Myopia by Increasing Children’s Exposure to Outdoor Light
Author Affiliations & Notes
  • Tingting Chen
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
  • Zhongqiang Zhou
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
    Henan Eye Hospital, Henan Eye Institute, People's Hospital of Zhengzhou University, Zhengzhou, China
  • Mengrui Wang
    School of Architecture, South China University of Technology, Guangzhou, China
  • Ling Jin
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
  • Yubo Liu
    School of Architecture, South China University of Technology, Guangzhou, China
  • Ian George Morgan
    Research School of Biology, Australian National University, Canberra, ACT, Australia
  • Mingguang He
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
  • Yizhi Liu
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
  • Nathan G Congdon
    State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
    ORBIS International, New York, NY
  • Footnotes
    Commercial Relationships Tingting Chen, None; Zhongqiang Zhou, None; Mengrui Wang, None; Ling Jin, None; Yubo Liu, None; Ian Morgan, None; Mingguang He, None; Yizhi Liu, None; Nathan Congdon, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2015, Vol.56, 2948. doi:
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      Tingting Chen, Zhongqiang Zhou, Mengrui Wang, Ling Jin, Yubo Liu, Ian George Morgan, Mingguang He, Yizhi Liu, Nathan G Congdon; Pilot Study of a Novel Classroom Designed to Prevent Myopia by Increasing Children’s Exposure to Outdoor Light. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):2948.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose
 

Recent epidemiological evidence suggests that children who spend more time outdoors are less likely to become myopic, while high light intensity has been reported to inhibit the development of myopia in animal models. We designed and constructed a novel open classroom (OC) allowing for exposure to outdoor levels of light. We have now assessed illumination, light spectrum and temperature outdoors, in the new classroom and in conventional classrooms, and the satisfaction and comfort of students and teachers using it, as a prelude to an intervention study.

 
Methods
 

The classroom was constructed of clear and light-diffusing glass, with a user-controlled shade canopy to be deployed in very sunny conditions. Light intensity at 9 points in the Open Classroom (OC), 3 points immediately outside it and 9 points in a nearby traditional classroom (TC) were measured hourly using a light meter (Z-10, Everfine Co, China) during school days for one week. A total of 230 (100%) primary school students (mean age 10.2 +/- 0.75 years, 57.0% male) and 10 (90.0%) teachers (mean age 36.7 +/- 7.29 years, 40% male) completed questionnaires designed by an architect on user comfort in the OC and TC.

 
Results
 

The light intensity in OC was significantly higher than in TC, and approached levels outdoors, especially with the canopy open on sunny days (Figure 1). Student comfort score for OC (69.4 +/- 7.56) was significantly higher than for TC (65.3 +/- 7.62, P<0.001), while teacher scores for OC (56.2 +/- 5.60) and TC (58.2 +/- 4.35, P= 1.00) did not differ. Further data for hot and cool seasons, and on light spectrum and temperature will be presented.

 
Conclusions
 

Light intensity in OC is significantly higher than TC, and approached that outdoors. Children are satisfied with the comfort of the OC.  

 
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