The study will be conducted in Neuro ICU of Acharya Vinoba Bhave rural Hospital (AVBRH), a tertiary care teaching hospital situated in the rural area of Wardha District. The aforementioned hospital, AVBRH, is a 1500+ bedded teaching hospital providing healthcare to the rural people of central India. 

Sampling Procedure:

       After approval from the Institutional Ethics Committee, a prospective, observational study will be conducted in Neuro ICU of Acharya Vinoba Bhave rural Hospital (AVBRH), a tertiary care teaching hospital situated in the rural area of  Wardha District, Maharashtra, India.

ONSD was measured in two group’s.

        These patients underwent ONSD measurement by an observer. An individual permission waiver will be acquired from the institute. Individuals with orbital fractures, hyperthyroidism, glaucoma, optic nerve tumours, neuritis, inflammatory eye edema, or external ophthalmic paresis have been not included.

        An ultrasound equipment equipped with a linear probe operating at 13–6 MHz with orbital imaging settings will be used to do ocular ultrasounds. An ICU physician with training in ONSD measurements conducted the measurements. The patients were lying down with their heads propped up 30 degrees. The closed eyelid will be covered with tegaderm, and the probe—which will be then positioned on the orbit’s superior and lateral surfaces—will be covered with a large amount of jelly. An electronic calliper will be  used to measure ONSD in the two-dimensional mode, 3 mm behind the globe along an axis perpendicular to the optic nerve. An average of three readings have been taken for each eye.

ONSD by ultrasound will be correlated with the CT/MRI findings of raised ICP reported by the radiologist.