Scientific correspondence
Myopia and night lighting in children in Singapore
Seang-Mei Sawa, Hui-Min Wub, Ching-Ye Honga, Wei-Han Chuac, Kee-Seng Chiaa, Donald Tanc
a Department of
Community, Occupational and Family Medicine, National University of
Singapore, Republic of Singapore, b Defence Medical Research
Institute, Republic of Singapore, c Singapore Eye Research Institute, Republic of
Singapore
Correspondence to: Dr Seang-Mei Saw, Department of Community, Occupational and Family Medicine, National University of Singapore, 16 Medical Drive, Singapore 117597, Republic of Singapore cofsawsm{at}nus.edu.sg
Accepted for publication 14 December 2000
AIM
To examine the
role of night time lighting and myopia in children in Singapore
METHODSA cross
sectional study was conducted on 1001 children in two Singapore
schools. Cycloplegic refraction and A-scan biometry measurements were
made in both eyes. A detailed questionnaire was completed by the
parents to obtain information on night time lighting, near work
activity, educational and demographic factors.
RESULTSThere was no
difference in myopia prevalence rates in children exposed to night time
light (33.1%) compared with children who slept in the dark (31.4%)
before age 2. In addition, vitreous chamber depth was not related to
night light (p=0.58) before age 2. These results remained even after
controlling for near work.
CONCLUSIONMyopia is
not associated with night light in Asian populations.
© 2001 by British Journal of Ophthalmology
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