Abstract

Purpose: This study investigated visual acuity and refractive error in elementary schoolchildren and examined relationship between visual acuity and refractive error. Methods: Naked visual acuity and refractive error for selected 200 schoolchildren (400 eyes) of 1st, 3rd and 6th grades. Results: The refractive error in hyperopia was gradually decreased and visual acuity was increased as higher grade. The regression line of Y=2.1471X-3.1484 (F=313.9377, P<0.001) and closed inter-relationship were found between visual acuity and refractive error in myopia. The regression line equation of Y=-0.6854X+1.1764 (F=7.054, P<0.01) and closed inter-relationship were found between visual acuity and refractive error in hyperopia. The relationship between visual acuity and refractive error in astigmatism was Y=2.2509X-2.8738 (F=21.7952, P<0.001) and closed inter-relationship was found. Conclusions: Myopia, hyperopia and astigmatism showed closed inter-relationship with visual acuity.

목적: 본 논문에서는 초등학생들의 시력과 굴절이상과의 관계를 조사하고 이들의 상관관계를 분석하였다. 방법: 초등학교 1, 3, 6학년 200명(400안)을 선정하여 나안시력과 굴절이상을 측정하였다. 결과: 저학년에서 고학년으로 갈수록 근시도는 증가하고, 시력은 감소하였고, 1차 회귀직선방정식은 Y=2.1471X-3.1484 (F=313.9377, P<0.001)로 나타났다. 원시도와 시력에 대한 1차 회귀직선방정식은 Y=-0.6854X+1.1764 (F=7.054, P<0.01)로 나타나 원시도와 시력 감소의 유의한 상관관계가 확인되었다. 시력과 난시도의 관계는 Y=2.2509X-2.8738 (F=21.7952, P<0.001)로 나타나 유의한 상관관계가 확인되었다. 결론: 근시, 원시, 난시 모두 시력과 유의한 상관관계가 확인되었다.

Keywords

• accommodation;
• visual acuity;
• myopia;
• hyperopia;
• astigmatism

• 조절력;
• 시력;
• 근시;
• 원시;
• 난시;