Background: It is a well-known fact that pregnancy-induced hypertension is a most common type of hypertension encountered during pregnancy, and has the most serious consequences for the mother and the baby. Therefore, it is always desirable to know the extent of its severity by a realtime and easily accessible modality such as ultrasound. Aims: The aim of the study was to estimate the incidence of increased optic nerve sheath diameter (ONSD) using ocular ultrasonography in normal antenatal women and in patients with severe preeclampsia and eclampsia. Setting and design: This study design wasprospective observational. Methods: This study was carried out during the year 2021 - 2022 after obtaining approval from the Institutional Ethics Committee of the Department of Anaesthesiology and the Department of Radiodiagnosis, GMC, Srinagar. The study was designed in three cohort groups: Group I (Normal antenatal women), Group II(severe preeclampsia), and Group III(eclampsia).Demographic profiles, hemodynamic parameters, laboratory markers for the severity of PIH and ultrasonographic OSND were measured. Statistical analysis used: Data were statistically analysed using Chi-Square tests or Fisher's Exact test for qualitative variables. The quantitative variables were analysed using one way analysis of variance technique. Value of P < 0.05 was considered statistically significant.