Study: Children With Blocked Tear Ducts Face Lazy Eye Risk

by Sheela Philomena on  October 13, 2011 at 3:40 PM Child Health News
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Kids under the age of 3 with a nasolacrimal duct obstruction (NLDO) or blocked tear duct are at increased risk for developing amblyopia (lazy eye), reveals study. About 6% of children are born with blocked tear ducts. Study published in the Journal of the AAPOS.
 Study: Children With Blocked Tear Ducts Face Lazy Eye Risk
Study: Children With Blocked Tear Ducts Face Lazy Eye Risk

Authors Noelle S. Matta, CO, CRC, COT, and David I. Silbert, MD, FAAP, of the Family Eye Group in Lancaster, PA, report that of the 375 children studied, 22% had amblyopia risk factors, an 8-fold increase compared with the rate in the general population. More than 63% of the children with risk factors developed clinical amblyopia necessitating treatment. Half of the patients who had risk factors required treatment with glasses, and 1 in 5 required patching therapy.

"We recommend that all children with congenital NLDO undergo comprehensive examination, including cycloplegic refraction, and be followed carefully if risk factors are present," commented Ms. Matta.

"What is especially interesting about this study is that all of the patients who required patching had amblyopia in the eye that had the blocked tear duct. This is strong evidence that the association of amblyopia and tear duct obstruction is more than coincidental," said David G. Hunter, MD, PhD, Editor-in-Chief of the Journal of AAPOS and Ophthalmologist-in-Chief at Children's Hospital Boston.

Source: Eurekalert

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