Publications by authors named "Pratik Chettry"
Effects of head-down tilt on optic nerve sheath diameter in healthy subjects.
Ophthalmic Physiol Opt
November 2023
Purpose: Intracranial pressure increases in head-down tilt (HDT) body posture. This study evaluated the effect of HDT on the optic nerve sheath diameter (ONSD) in normal subjects.
Methods: Twenty six healthy adults (age 28 [4.
Optic Nerve Head Morphological Changes Over 12 Hours in Seated and Head-Down Tilt Postures.
Invest Ophthalmol Vis Sci
November 2020
Purpose: The purpose of this study was to determine changes in optic nerve head (ONH) morphology in seated and 6° head-down tilt (HDT) postures over a 12-hour period.
Methods: Thirty eyes of 30 healthy human subjects (15 females) were included. Composite radial and circular optical coherence tomography (OCT) scans centered on the ONH, intraocular pressure (IOP), and optic nerve sheath diameter (ONSD) were acquired every two hours from 7 a.