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KMID : 1036620130010030033
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Journal of Korean Clinical Health Science
2013 Volume.1 No. 3 p.33 ~ p.37
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A Study of Myopia Progression Status for a Elementary School Student Group in Daegu Dalseogu
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Lee Byung-Hwa
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Abstract
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Purpose: In this study, we divided elementary school students into two investigated groups. The A group is the lower graders(boys 9, girls 18), and the B group is the higher graders(boys 10, girls 13). The myopia progression has been compared with to each group and it has been investigated for variable terms.
Methods: We have analyzed the refraction inspection record of 50 students(boys 19, girls 31) who visited optical shops and more than two times in one year.
Results: The subject of study were 50 students(boys 19, girls 31). 1. The distribution of spherical equivalent power with ages : boys A group -2.42D, girls A group -2.53D, boys B group -2.63D, girls B group -2.78D. boys B group -2.63D, girls B group -2.78D. 2. The monthly variation of spherical equivalent power : -0.055D(A), -0.04D(B) in boys, and -0.065D(A), -0.07D(B) in girls.
Conclusions: Considering monthly variations and Supposing that the time of changing spectacles degrees were the time of refracting inspection. The result : 3.8 month for A group, 4.5 month for B group in boys, and 3.5 month for A group, 5.2 month for B group in girls.
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KEYWORD
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Elementary school students, Myopia, Refraction, Spherical equivalent power
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