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KMID : 1159320130150040349
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Korean Journal of Vision Science
2013 Volume.15 No. 4 p.349 ~ p.360
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Comparison of Life Patterns between Korean and Canadian of Juvenile Myopia
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Kim Jung-Hee
Lee Young-Il
Kang Sue-Ah
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Abstract
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Purpose: In this study, life patterns on Korean and Canadian teenagers with myopia are compared and analyzed.
Methods: Refraction was performed to 332 students with myopia in middle and high schools in Gyeonggi-Do and 288 students with myopia in middle and high schools in Toronto, Ontario. Based on Korean refraction items, the same items with Canadian refraction items were selected as the results for refraction. Survey items on a life pattern were established by adding necessary items to used items in previous studies and survey was directly conducted to students who visited an optical shop.
Results: The average myopic degree was approximately 2.79D in Korean students and 2.89D in Canadian students and the myopic degree of Canadian students was slightly higher, but there was no statistically significant difference(p>0.05). Short distance work and related factors, such as school hours, classes in private educational institute, homework hours and game hours, were longer in Canadian students than Korean students and there was a significant difference in game hours(p=0.009) and homework hours(p=0.001) between Korea and Canada. Reading distance and computer watching distance were shorter in Canadian students than Korean students and there was no significant difference between two groups(p>0.05). TV watching time was longer in Korean students and TV watching distance was shorter. There was a significant difference in TV watching time and distance between Korea and Canada(p<0.05). The percentage of students who read a book in a correct posture was 51.8% in Korean students and 22.2% in Canadian students, so that the percentage of Korean students were more than two-fold of Canadian students. Other life patterns affecting ametropia levels, i.e. sleeping hours and exercising hours, were longer in Canadian students and the number of students who use an appropriate lamp for reading and going to bed was higher in Korean students than Canadian students. The number of students who take food beneficial to eyes everyday was similar between two groups and the percentage of students who do not take beneficial food was 3.7% higher in Canadian students than Korean students. Lifestyle depending on the myopic level of Canadian students were not statistically significant(p>0.05). Lifestyle depending on the myopic level of Korean students were statistically significant in academy class and class time(p<0.05).
Conclusion: In the result of comparison of life patterns in Korean and Canadian teenagers with myopia, the number of students who have undesirable life patterns during short distance work was higher in the Canadian. However, a number of Korean students were deviated from the standards of each life pattern item. Therefore, it is concluded that home, school and society need to pay attention to and supervise juvenile eye management.
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KEYWORD
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Life patterns, Refractive error, Myopia
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