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Central corneal thickness of Iraqi population in relation to age, gender, refractive errors and corneal curvature: a hospital-based cross-sectional study

Poster Details

First Author: Q.Farhood IRAQ

Co Author(s):    Y. Kadhim                    

Abstract Details


The aim of this study is to determine the mean central corneal thickness(CCT) among a normal Iraqi population and to correlate between CCT and age, gender, refraction, and corneal curvature.


Ibn Al-Haitham Teaching Eye Hospital / BAGHDAD /Iraq


This cross-sectional study was carried out at Ibn Al-Haitham Teaching Eye Hospital. A total of 418 eyes from 209 healthy individuals with an age range from 20 to 75 years were studied. CCT was measured by ultrasound pachymeter. Refraction was measured using an auto-refractor and confirmed by trial lenses and retinoscopy to calculate the spherical equivalent. Corneal curvature was measured using an auto-refracto-keratometer to calculate the average corneal curvature (AVK).


The mean CCT was 543.95�Â�±32.58 �Î�¼m with a range from 422 to 636 �Î�¼m. CCT was not affected by gender. CCT significantly negatively correlated with age and AVK. CCT sig�Â�¬nificantly positively correlated with the spherical equivalence


Among an Iraqi population, CCT significantly decreased with age. Myopics had significantly thinner corneas. There was weak but significant negative correlation between CCT and corneal curvature. We recommend further studies about the relationship between central corneal thickness and other ocular parameters in Iraqi population such as the axial length.

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