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Am J Ophthalmol. 2005 Sep;140(3):535-7.

Impact of birth parameters on eye size in a population-based study of 6-year-old Australian children.

Author information

1
Department of Ophthalmology, Westmead Millennium Institute, University of Sydney, Westmead NSW, Australia.

Abstract

PURPOSE:

To study the effect of birth parameters, including birth weight, birth length, and birth head circumference on ocular dimensions in 6-year-old children.

DESIGN:

Cross-sectional study.

METHODS:

A stratified random cluster sample of 6-year-old Sydney school-students (n = 1765) were participants in this study. Children had ocular dimensions measured with non-contact methods (Zeiss IOLMaster, Zeiss, Meditec-AG, Jena, Germany). Information on birth weight, height, and head circumference was derived from a questionnaire.

RESULTS:

After adjusting for cluster, age, and gender, children with birth weight <2500 g had mean axial length 22.46 mm (95% confidence interval [CI], 22.20-22.72) and mean corneal radius 7.70 mm (CI 7.61-7.79). This compared with axial length 22.80 mm (CI 22.70-22.90) and mean corneal radius 7.85 mm (CI 7.81-7.89) for children with birth weight > or =4000 g. Axial length and corneal radius were also related to birth length and head circumference. Refraction, however, was unrelated to birth size.

CONCLUSION:

Birth parameters have a lasting effect on eye size but not on spherical equivalent refraction.

PMID:
16139009
DOI:
10.1016/j.ajo.2005.02.048
[Indexed for MEDLINE]

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