한국인의 연령 및 조도에 따른 동공크기에 대한 연구
Pupil Size in the Normal Korean Population According to Age and Illuminance
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초록
목적: 정상 한국인의 연령 및 조도에 따른 동공의 크기를 알아보고자 하였다. 대상과 방법: 2009년 1월부터 본원을 내원한 안과적 질환의 기왕력이 없는 환자들을 연령별로 나누어 10대에서 80대까지 연령군별 각 20명씩 320안을 대상으로 하였다. Colvard pupillometer^Ⓡ (OASIS medical, Glendora, CA, USA) 동공측정계를 사용하여 4가지 조도(3500, 1200, 500, 5 lux)에서 동공의 수직, 수평 길이 및 면적을 측정해 비교 분석하였다. 결과: 동공의 수직, 수평 길이는 모든 조도에서 연령이 증가함에 따라 통계적으로 의미있게 감소하였다. 암순응 후 측정한 동공면적도 10대에서 47.30 ± 10.75 mm^2, 20대에서 43.32 ± 11.68 mm^2, 30대에서 41.94 ± 8.26 mm^2, 40대에서 40.98 ± 6.37 mm^2, 50대에서 40.61 ± 8.29 mm^2, 60대에서 38.60 ± 9.36 mm^2, 70대에서 37.78 ± 6.61 mm^2, 80대에서 35.45 ± 7.34 mm^2로 의미있게 감소되었다. 결론: 연령이 증가할수록 동공의 수직 및 수평 길이는 유의하게 감소하였으며, 이는 동공의 면적을 계산하였을 때도 같은 결과를 보였 다. 이 결과는 백내장 및 노안 교정 굴절 수술의 참고자료로 활용될 수 있을 것이다.
Abstract
Purpose: To report the change of pupil sizes according to age and illuminance in the normal Korean population. Methods: Normal Koreans outpatients who never had a history of ophthalmic disease were examined. The patients consisted of 320 eyes of 160 patients, which were classified into 8 age decades (teenage to 80’s) with 40 eyes in each age group. The vertical and horizontal pupil size and area under 4 different illuminances (3,500, 1,200, 500, 5 lux) were measured using the Colvard pupillometer^Ⓡ (OASIS Medical, Glendora, CA, USA). Results: The pupil size was significantly decreased as the age increased under each illuminance. The pupil area measured after dark adaptation was 47.30 mm^2 in the teenage group, 43.32 mm^2 in the 20’s group, 41.94 mm^2 in the 30’s group, 40.98 mm^2 in the 40’s group, 40.61 mm^2 in the 50’s group, 38.60 mm^2 in the 60’s group, 37.78 mm^2 in the 70’s group and 35.45 mm^2 in the 80’s group. The decrease in pupil area was statistically significant. Conclusions: In the normal Korean population, a significant decrease in pupil size and area was observed with aging. The present study results provide good basic data for cataract and presbyopia refractive surgery.
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