Background: This study aims to study predictors of posterior encephalopathy syndrome in eclampsia and the impact of posterior encephalopathy syndrome on outcome. Material and methods: This prospective study enrolled consecutive women with eclampsia. These women were subjected to magnetic resonance imaging of the brain. Predictors of posterior encephalopathy syndrome were determined using univariate, followed by multivariate, analysis. Women were followed for 30 days. Maternal outcome was assessed using modified Rankin scale (mRS). Results: One hundred and four consecutive women with eclampsia were included. Seventy-four women with eclampsia had posterior encephalopathy syndrome. Predictors of posterior encephalopathy syndrome were primigravida status, altered sensorium, impairment of vision, vomiting, status epilepticus, unregistered status in a regular ante-natal check-up programme, lactate dehydrogenase, uric acid, low platelet count and deranged kidney and liver functions on univariate analysis. On multivariate analysis, vision impairment, primigravida status, and unbooked pregnancy were independent factors. Posterior encephalopathy syndrome was associated with a poor maternal and fetal outcome. Conclusion: Vision impairment, primigravida status, and unbooked pregnancy are independent predictors of posterior encephalopathy syndrome, that in turn is associated with a poor maternal and fetal outcome. (c) 2017 International Society for the Study of Hypertension in Pregnancy. Published by Elsevier B.V. All rights reserved.