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Determinants of Posterior Corneal Biometric Measurements in a Multi-Ethnic Asian Population

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  • Marcus Ang
  • Wesley Chong
  • Huiqi Huang
  • Tien Yin Wong
  • Ming-Guang He
  • Tin Aung
  • Jodhbir S Mehta

Abstract

Purpose: To describe the corneal and anterior segment determinants of posterior corneal arc length (PCAL) and posterior corneal curvature (PCC). Methods: Cross-sectional, population-based study of 1069 subjects (1069 eyes) aged 40–80 years, from three major Asian ethnic groups. All underwent anterior segment optical coherence tomography imaging and analysis with Zhongshan Angle Assessment Program. Our main outcome measures were determinants of PCAL and PCC using adjusted, multivariate linear regression analysis, adjusted for confounders to obtain the estimated marginal means (EMM) with standard error (SE). Results: The overall mean (± SD) of PCC was: 6.51±0.39 mm; and PCAL was: 12.52±0.59 mm. Malays had a relatively longer PCAL (EMM = 12.74 mm, SE = 0.04 mm) than Chinese (EMM = 12.48 mm, SE = 0.03 mm, P

Suggested Citation

  • Marcus Ang & Wesley Chong & Huiqi Huang & Tien Yin Wong & Ming-Guang He & Tin Aung & Jodhbir S Mehta, 2014. "Determinants of Posterior Corneal Biometric Measurements in a Multi-Ethnic Asian Population," PLOS ONE, Public Library of Science, vol. 9(7), pages 1-7, July.
    • Handle: RePEc:plo:pone00:0101483
    DOI: 10.1371/journal.pone.0101483
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