Cortical blindness may occur in a woman with preeclampsia or eclampsia.
Features of sudden cortical blindness in preeclampsia or eclampsia:
(1) A pregnant woman with preeclampsia or eclampsia.
(2) The woman experiences decreased vision in both eyes.
(3) MRI or other imaging studies show hyperintense signals in the occipital lobe.
(4) The vision loss is usually reversible after delivery.
(5) Exclusion of alternative explanations.
It has been ascribed to:
(1) vasogenic (hydrostatic) cerebral edema
(2) possibly cortical vasospasm with ischemic injury
(3) possibly petechial hemorrhages
