Zika- glaucoma link demonstrated in Yale study - Outbreak News Today | Outbreak News Today Outbreak News Today
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A team of researchers in Brazil and at the Yale School of Public Health has published the first report demonstrating that the Zika virus can cause glaucoma in infants who were exposed to the virus during gestation.

Newborn Image/lailajuliana

Newborn
Image/lailajuliana

Exposure to the Zika virus during pregnancy causes birth defects of the central nervous system, including microcephaly. Brazilian and Yale School of Public Health researchers had reported early during the microcephaly epidemic that the virus also causes severe lesions in the retina, the posterior portion of the eye. However, until now, there has been no evidence that Zika causes glaucoma, a condition that can result in permanent damage to the optic nerve and blindness.

“We identified the first case where Zika virus appears to have affected the development of the anterior chamber or front portion of the eye during gestation and caused glaucoma after birth,” said Dr. Albert Icksang Ko, professor at the Yale School of Public Health and co-author of the study published in the journal Ophthalmology. Ko has longstanding research collaborations in Brazil and has worked with local scientists since Zika first appeared in the Americas to better understand the birth defects that are caused by the virus and the risk factors for Zika Congenital Syndrome.

While conducting their investigations of the microcephaly epidemic in Salvador in Northeast Brazil, the researchers identified a three-month-old boy who was exposed to Zika virus during gestation. While no signs of glaucoma were present at the time of birth, the infant developed swelling, pain, and tearing in the right eye. The research team diagnosed glaucoma as the cause of symptoms and together with local ophthalmologists, performed a trabeculectomy, an operation that successfully alleviated the pressure within the eye.

Read more at Yale University

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