Research conducted by scientists studying infants with the Zika virus in Brazil have discovered new dangerous eye complications that can be linked to the virus. These eye complications can lead to possible severe vision loss and even possibly complete vision loss. Three Brazilian infants that have microcephaly—a birth defect caused by Zika that causes shrunken heads and brains in newborns—have been observed of also having hemorrhaging, abnormal blood vessel development and retinal lesions. This has never been observed before by researchers.