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PLoS By Category | Recent PLoS Articles
Neurological Disorders - Non-Clinical Medicine - Ophthalmology - Pediatrics and Child Health - Physiology - Surgery

Central Corneal Thickness and Intraocular Pressure in Malay Children
Published: Wednesday, October 05, 2011
Author: Fatemah Heidary et al.

by Fatemah Heidary, Reza Gharebaghi, Wan Hazabbah Wan Hitam, Nyi Nyi Naing, Nadiah Wan-Arfah, Ismail Shatriah

Background

To determine the mean values for central corneal thickness (CCT) and intraocular pressure (IOP) and the relationship between these values, in healthy Malay children to serve as reference values in diagnosis and treatment.

Design

A cross-sectional study.

Methodology/Principal Findings

One hundred and eight eyes (54 subjects) of Malay children without diagnosis of ocular abnormality or disease meeting our inclusion and exclusion criteria were selected. The CCT and IOP were measured by specular microscopy and non-contact air-puff tonometry respectively, for analysis and comparison with the values obtained in previous studies. Mean CCT and IOP was found to be 530.87±30.79 µm and 15.65±3.05 mm Hg respectively. CCT was found not to vary with age. A positive relationship was found between CCT and IOP; specifically, with every 100-µm increase in CCT, IOP increased by 3.5 mm Hg.

Conclusions/Significance

CCT and IOP are strongly related in healthy Malay children aged 8 to 16. The mean CCT of Malay children is lower than that of majority children of other ethnic groups, supporting the existence of CCT variation among different populations and that ethnicity should be a key consideration when applying CCT data to the general pediatric population.

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