Amblyopia, sometimes referred to as "lazy eye," is a cause of poor vision in children. It occurs in about 1.6% to 3.6% of the general population. Early treatment is critical, as the first few years are the most important in the development of eyesight. If amblyopia is not treated in the first 6 to 10 years, poor vision becomes permanent and cannot be corrected.
A recent study published in the Journal of the AAPOS, the official publication of the American Association for Pediatric Ophthalmology and Strabismus, has found that children under the age of 3 with a nasolacrimal duct obstruction (NLDO), or blocked tear duct, were at an increased risk for developing amblyopia. About 6% of children are born with blocked tear ducts.
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.
The article is "High prevalence of amblyopia risk factors in preverbal children with nasolacrimal duct obstruction," by Noelle S. Matta, CO, CRC, COT and David I. Silbert, MD, FAAP. It appears in the Journal of AAPOS, Volume 15, Issue 4 (August 2011) published by Elsevier.
Rachael Zaleski | EurekAlert!
Improving memory with magnets
28.03.2017 | McGill University
Graphene-based neural probes probe brain activity in high resolution
28.03.2017 | Graphene Flagship
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
28.03.2017 | Life Sciences
28.03.2017 | Information Technology
28.03.2017 | Physics and Astronomy