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BioMed Research International
Volume 2015, Article ID 847694, 4 pages
Clinical Study

Central Macular Thickness in Children with Myopia, Emmetropia, and Hyperopia: An Optical Coherence Tomography Study

1Department of Ophthalmology, Caritas Medical Centre, 111 Wing Hong Street, Kowloon, Hong Kong
2Department of Ophthalmology, University of Hong Kong, Room 301, Level 3 Block B, Cyberport 4, 100 Cyberport Road, Hong Kong
3Department of Ophthalmology and Visual Sciences, Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong

Received 4 August 2014; Accepted 17 August 2014

Academic Editor: Michele Iester

Copyright © 2015 Gordon S. K. Yau et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. To investigate the central macular thickness (CMT) in myopic, emmetropic, and hyperopic Chinese children using Optical Coherence Tomography. Methods. 168 right eyes of Chinese subjects aged 4–18 were divided into 3 groups based on their postcycloplegic spherical equivalent: myopes (<−1.0 D); emmetropes (≥−1.0 to ≤+1.0 D); and hyperopes (>+1.0 D) and the CMT was compared before/after age adjustment. The CMT was correlated with age, axial length, and peripapillary retinal nerve fibre layer (RNFL). Results. The mean CMT was μm and the mean population age was years. The CMT was thickest in the myopes (μm, ), followed by the hyperopes (μm, ) and then emmetropes (μm, ) (all ). When adjusted for age, myopes had a thicker CMT than the other 2 groups (all ) but there was no CMT difference between the emmetropes and hyperopes (). There was no significant correlation between CMT with age, axial length, or peripapillary RNFL (all ). Conclusion. Chinese children with myopia had a thicker CMT than those with emmetropia or hyperopia. There was no correlation of the CMT with age, axial length, or peripapillary RNFL thickness.