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Analysis of anterior and posterior corneal spherical aberration with age in the korean

한국 성인의 연령에 따른 각막 전후면 구면수차에 관한 분석

  • 송윤영 (제주관광대학교 안경광학과) ;
  • 정미아 (극동대학교 안경광학과) ;
  • 강인산 (제주관광대학교 안경광학과) ;
  • 최지영 (제주관광대학교 안경광학과)
  • Received : 2012.11.11
  • Accepted : 2012.11.30
  • Published : 2013.01.31

Abstract

We have investigated the variation of spherical aberration of the anterior and posterior surface in a Korean sample population with various age between 20 to 71 years old. We used Pentacam (Oculus Inc., Germany) to measure the corneal radius, asphericity, and spherical aberration of 290 patients with normal cornea. There were negative correlation between corneal anterior radius and spherical aberration(r = -0.22, p<0.0001), and, there were negative correlation between corneal posterior radius and spherical aberration(r=-0.27, p < 0.0001). There were positive correlation between anterior asphericity and spherical aberration(r = 0.24, p < 0.0001), however there were negative correlation between posterior asphericity and spherical aberration(r = -0.17, p=0.00288).The average of anterior spherical aberration and posterior spherical aberration was $0.482{\pm}0.099{\mu}m$ and $-0.098{\pm}0.029{\mu}m$. The average of spherical aberration was $0.385{\pm}0.097{\mu}m$. There were significant positive correlations between anterior spherical aberration and age(r = 0.227, p<0.0001), and there were positive correlations between posterior aberration and age(r = 0.349, p<0.0001). It is considered that this data can be used as basic information for furture studies for improving the quality of vision of modern human and, through the analysis of the spherical aberration of cornea was to provide a better understanding of the optical part of the Korean's eye.

Keywords

Corneal radius;Asphericity;Spherical aberration