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KMID : 1159320090110030173
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Korean Journal of Vision Science
2009 Volume.11 No. 3 p.173 ~ p.185
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Analysis of corneal radius by age and refractive error
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Jung Se-Ju
Lee Hae-Jung
Lee Kyu-Byung
Jung Mi-A
Mah Ki-Choong
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Abstract
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Purpose : This study measured corneal radius according to age and refractive error using Pentacam and analyzed its characteristics.
Methods : For this study, we sampled 51 under-graduate students (29 males and 22 females, average age 22.50±3.31) and 39 elderly people (21 males and 18 females, average age 54.26±6.25) who gave their consent to the objective of this study and did not have any ocular diseases, ocular diseases history and refractive surgery. With the subjects, we performed objective and subjective refraction and measured the corneal radius using Pentacam.
Results : The anterior corneal radius was shorter at an old age (p=0.005), and there was a significant correlation (r=?0.259, p=0.000). The posterior corneal radius was shorter at an old age (p=0.043), and there was a significant correlation (r=?0.282, p=0.000). According to refractive error, the anterior corneal radius was shorter in the myopes than in the emmetropes (p=0.016), but there was no correlation. The posterior corneal radius was shorter in the myopes than in the emmetropes (p=0.001), and there was a significant correlation (r=?0.258, p=0.001).
Conclusion : Age was correlated with the anterior and posterior corneal radius. Refractive error was correlated with the posterior corneal radius, but not with the anterior corneal radius.
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KEYWORD
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Pentacam, Age, Corneal radius, Refractive error
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