목적: 굴절이상과 조절반응의 상관성을 알아보고자 하였다. 방법: 본 연구의 취지에 동의하고 안질환이 없고 굴절교정수술을 시행하지 않은 대학생 81명(정시군 26명, 근시군 55명, 평균연령 21.05±1.87세)을 선정하여 Nvision-K 5001 자동굴절계를 이용하여 굴절이상도와 조절반응을 측정하였다. 결과: 0.2시표, 0.4시표 및 0.8시표로 측정한 조절반응량은 모두 정시안이 근시안보다 높았으며 유의한 차이가 있었다. 0.2 시표(r=0.30, p=0.01) 및 0.4 시표(r=0.23, p=0.04)로 측정한 조절반응량은 근시도가 증가할수록 작아지는 약한 상관성을 보였다. 0.2 시표, 0.4 시표 및 0.8 시표로 측정한 조절반응량은 정시군(F=0.08, p=0.93), 조기발생 근시군(F=1.35, p=0.27) 및 만기발생 근시군(F=2.51, r=0.09) 모두 유의한 차이가 없었다. 결론: 정시군이 근시군에 비해 조절반응량이 높았고, 근시도가 낮을수록 조절반응량이 높았다. 0.2시표와 0.4시표를 이용하여 측정한 조절반응량은 굴절이상의 유형에 따라 유의한 차이를 보였다.

Purposes: To investigate the correlation of refractive error and accommodative response. Methods: The subject were 81 undergraduate students (26 emmetropes and 55 myopes, average age 21.05±1.87) who gave their consent to the objective of this study and did not have any ocular diseases, ocular diseases history and refractive surgery. We measured refractive error and accommodative response using Nvision-K 5001 Autorefractometer. Results: All of the accommodative response measured by 0.2, 0.4 and 0.8 targets were significantly higher in the emmetropes than in the myopes. The accommodative response measured by 0.2 target(r=0.30, p=0.01) and 0.4 target(r=0.23, p=0.04) was decreased as myopia was increased and showed weak correlation with refractive error. The accommodative response measured by 0.2, 0.4 and 0.8 targets showed no significant difference in emmetropic group(F=0.08, p=0.93), early-onset myopic group(F=1.35, p=0.27) and late-onset myopic group(F=2.51, r=0.09). Conclusion: The accommodative response was higher in the emmetropic group than in the myopic group, and accommodative response was increased as myopic error was lower. The accommodation response measured by 0.2 and 0.4 targets showed significant difference among the type of refractive error.

• 배현주
• 윤미옥
• 김흥수
• 엄정희