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ROBINSON BARBARA E. OD PhD
Optometry and Vision Science: May 1999
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ABSTRACT:

Purpose

To describe the frequency of and risk factors associated with myopia in grade one children.

Methods

Refractive error was measured by static retinoscopy, without cycloplegia, for 10,616 children in the first year of a province-wide vision-screening program. Information on factors that might be associated with myopia was collected from parents or guardians by self-administered questionnaires distributed before the vision screening. These factors were evaluated by a case-control method.

Results

The prevalence of myopia, greater than –0.25 D, was 6%. The estimated relative risk of myopia was increased significantly among children whose birth weight was <2500 g and whose mothers had a history of early spectacle use.

Conclusions

Results suggest that the prevalence of myopia in 6-year-old children is associated with both hereditary and nonhereditary factors. In accord with prior work, the results argue that low birth weight has a permanent influence upon eye development.

© 1999 American Academy of Optometry