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Robert Avery, D.O., M.S.C.E., studies innovations to improve vision in children with tumors
Date:2/28/2014

emained stable for nine months after the treatment was discontinued, Avery wrote. Her visual field improved after two months of Bevacizumab monotherapy and her visual acuity returned to normal after four months of therapy. It remained stable at 12 months.

The standard front line treatment using cardioplatin-based chemotherapy typically produces only a modest benefit in visual acuity, Avery says.

"Given that most patients with OPG-related visual impairment will show modest or no visual improvement with standard treatment, the incorporation of Bevacizumab in these cases may greatly improve visual outcomes and should be considered in appropriate clinical situations," Avery says.

Handheld Technology

In another study in JAMA Ophthalmology Avery and other researchers found that using innovative technology, such as handheld optical coherence tomography (OCT), may help physicians improve their ability to evaluate children with optic pathway gliomas by capturing three-dimensional ultrahigh resolution (e.g., 3 microns..one-half the width of a red-blood cell) images or their retinal axons. Avery's study was also reported in Reuters Health.

In that study, the other Children's National researchers included Packer, Hwang, Maria T. Acosta, MD, in neurology, Domiciano Jerry Santos, MD, in anesthesiology, sedation, and perioperative medicine, Dina J. Zand, MD, PhD, in the genetics program, Lindsay B. Kilburn, MD, in neuro-oncology, Kenneth N. Rosenbaum, MD, in genetics and metabolism, and Brian R. Rood, MD, clinical director of the neuro-oncology program.

In very young children with these tumors, it may be difficult to measure visual acuity especially if they have cognitive or behavioral difficulties. "The handheld OCT provides a safe, non-contact and objective measure of visual pathway integrity that does not rely on a child's cooperation," Avery says.

"We hope that our handheld OCT measures will some
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Contact: Joe Cantlupe
jcantlupe@childrensnational.org
202-476-4500
Children's National Medical Center
Source:Eurekalert

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