AN INVESTIGATION
ON RISK FACTORS IN VISUAL DEVELOPMENT OF PRESCHOOL CHILDREN IN CHONGQING
Zhang L-N, Cheng Q, Hu Y, Li H-Q
Department of Primary
Child Care, Children’s Hospital, Chongqing University of Medical Sciences,
China
Objective:
This study was designed to detect advantageous versus disadvantageous
factors in visual development of preschool children and to find the ways of
intervention to prevent serious visual defects.
Methods:
Visual acuity data were obtained from 243 preschool children aged three and
four years old. The parents answered the questionnaires including twelve
factors relating to vision. Logistic Regression statistics was used to the
data to obtain the estimates on risk factors in visual development.
Results: The
prevalence of subnormal visual acuity of preschool children in Chongqing
was 24.7%.
The risk ratios (RR) of the distance for watching television (TV)(77%<3m,
26.7%<2m), the time of outdoor activities, the time of watching
TV and the indoor lighting were 1.8365(P<0.05), 1.7645 (P<0.01),
1.6897 (P<0.05)
and 1.4676(P>0.05),
respectively.
Conclusion:
Perhaps the narrowish rooms were responsible for children watching TV to
keep short-distance in Chongqing area. To improve the eye health, preschool
children should be encouraged to play outdoors, which will be beneficial to
premature visual acuity development in early childhood.