_:vb50949307 . _:vb50949307 "An eye disease that affects the neural pathway from the optic nerve to the visual cortex, through which light is interpreted as an image."^^ . _:vb50949307 . _:vb50949307 . _:vb50949307 "url:https://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&ns=ncit&code=C35342"^^ . _:vb50949307 . _:vb50949307 .