• Journal of the Optical Society of Korea
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• 제15권1호
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• pp.68-73
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• 2011

This study investigated, using the Orbscan II topography system, the influence of age and sex related changes on the corneal thickness and anterior corneal curvature, more specifically the fine structure of the cornea, in a Korean young population. The Orbscan II topography system is a computer-assisted slit-beam scanning technology that can map the anterior section of the cornea. The mean central corneal thickness of all subjects was $547.532{\pm}44.529\;{\mu}m$. There was no statistical difference (p>0.5) in the mean central corneal thickness between males and females. Sex and age related changes in the mean central corneal thickness had no specific statistical difference (P>0.5). There was a negative correlation between the anterior corneal curvature and the central corneal thickness in all subjects, except for the twenty year olds. However, the thickness relationship between the mean central corneal and the eight paracentral corneal thicknesses had strong statistical differences in all subjects. Also age and sex related changes in the central corneal thickness and the anterior corneal curvature in all subjects had no statistically significant difference, except from 20-26 years old (p>0.05). This information could be a suitable reference basis for future studies in the young population of Asia and for the development of examination tools for corneal refractive surgery.

• 한국안광학회지
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• 제12권2호
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• pp.61-66
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• 2007

본 연구는 Orbscan II system을 이용하여 한국인 정시안을 대상으로 전면과 후면의 최적구면(Best-Fit-Sphere)을 분석하고자 하였다. 20명 40안을 대상으로 조절마비하 굴절검사를 시행하였고 각막 전면과 후면의 최적구변을 남, 녀 두 그룹으로 나누어 비교하였고 우안과 좌안으로 나누어 비교하였다. 20명(40안) 전체 평균 anterior BFS는 1mm 영역에서 $5.63{\pm}3.49{\mu}m$, 3mm 영역에서 $4.48{\pm}2.81{\mu}m$, 5mm 영역에서는 $2.14{\pm}1.82{\mu}m$이었고, posterior BFS 값은 1mm 영역에서 $22.54{\pm}10.25{\mu}m$, 3mm 영역에서 $15.88{\pm}7.55{\mu}m$, 5mm 영역에서는 $4.43{\pm}4.94{\mu}m$이었다. 남자와 여자와의 차이는 Mann-Witney U test로 조사한 결과 anterior, posterior 모두 통계학적으로 유의한 차이가 없었다.