Influence of near-work and outdoor activities on myopia progression in school children / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
;
(12): 32-35, 2011.
Artigo
em Chinês
| WPRIM
| ID: wpr-286912
ABSTRACT
<p><b>OBJECTIVE</b>To study the influence of near-work and outdoor activities on myopia progression in school children.</p><p><b>METHODS</b>Eighty 7-11-year-old school children with myopia were randomly assigned into an intervention group (n=41) and a control group (n=39). The children in the intervention group did near- and middle-vision activities less than 30 hrs per week and more outdoor activities than 14-15 hrs per week. Myopia progression was observed regularly over 2 years after which ophthalmologists administered questionnaires regarding near-vision work (reading, writing and using computer), middle-vision work (watching TV and extracurricular learning activities), outdoor activities, using nature light, wearing glasses, etc.</p><p><b>RESULTS</b>The annual mean myopia progression (0.38 ± 0.15 D) in the intervention group was significantly lower than that in the control group (0.52 ± 0.19 D; P<0.01). The children in the two groups spent similar amounts of time in near-vision activities, but the children in the intervention group spent less time in middle-vision activities (P<0.01) and more outdoor activities (13.7 ± 2.4 vs 6.2 ± 1.6 hrs/wk; P<0.01). When considering all children in the study, there were 4 factors that significantly correlated with less myopia progression more outdoor activities, more time spent wearing glasses, more time spent in natural light and less time using a computer. When analyzing the intervention group separately, more outdoor activity was inversely correlated with myopia progression (t=-2.510, P<0.05). Separate analysis of the control group indicated that more time wearing glasses was correlated with less myopia progression (t=-3.115, P<0.05).</p><p><b>CONCLUSIONS</b>Myopia progression in school children may be slowed by more outdoor activities, more time spent in natural light and more time wearing corrective glasses.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Refração Ocular
/
Inquéritos e Questionários
/
Progressão da Doença
/
Atividades de Lazer
/
Miopia
Limite:
Criança
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Chinese Journal of Contemporary Pediatrics
Ano de publicação:
2011
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS