The development of myopia among children with intermittent exotropia.

Autor: Ekdawi NS; Department of Ophthalmology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA., Nusz KJ, Diehl NN, Mohney BG
Jazyk: angličtina
Zdroj: American journal of ophthalmology [Am J Ophthalmol] 2010 Mar; Vol. 149 (3), pp. 503-7.
DOI: 10.1016/j.ajo.2009.10.009
Abstrakt: Purpose: To describe the long-term refractive error changes in children diagnosed with intermittent exotropia (IXT) in a defined population.
Design: Retrospective, population-based observational study.
Methods: Using the resources of the Rochester Epidemiology Project, the medical records of all children (<19 years) diagnosed with IXT as residents of Olmsted County, Minnesota, from January 1, 1975 through December 31, 1994 were retrospectively reviewed for any change in refractive error over time.
Results: One hundred eighty-four children were diagnosed with IXT during the 20-year study period; 135 (73.4%) had 2 or more refractions separated by a mean of 10 years (range, 1-27 years). The Kaplan-Meier rate of developing myopia in this population was 7.4% by 5 years of age, 46.5% by 10 years, and 91.1% by 20 years. There were 106 patients with 2 or more refractions separated by at least 1 year through 21 years of age, of which 43 underwent surgery and 63 were observed. The annual overall progression was -0.26 diopters (SD +/- 0.24) without a statistically significant difference between the observed and surgical groups (P = .59).
Conclusion: In this population-based study of children with intermittent exotropia, myopia was calculated to occur in more than 90% of patients by 20 years of age. Observation versus surgical correction did not alter the refractive outcome.
((c) 2010 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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