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Retina

Effects of Acute Intracranial Pressure Changes on Optic Nerve Head Morphology in Humans and Pig Model

, , , , , , , , , & show all
Pages 304-311 | Received 24 Dec 2020, Accepted 28 Jun 2021, Published online: 12 Dec 2021

Figures & data

Figure 1. Anatomy of the optic nerve head as seen on optical coherence tomography imaging. ONSAS- Optic nerve subarachnoid space

Figure 1. Anatomy of the optic nerve head as seen on optical coherence tomography imaging. ONSAS- Optic nerve subarachnoid space

Figure 2. Theoretical framework for the interaction of pressure gradients across lamina cribrosa (CSF: cerebrospinal fluid; ONH: Optic nerve head)

Figure 2. Theoretical framework for the interaction of pressure gradients across lamina cribrosa (CSF: cerebrospinal fluid; ONH: Optic nerve head)

Table 1. Baseline data for the cohort of patients undergoing lumbar puncture

Figure 3. Optic nerve morphological parameters measured on OCT images (ALCD: Anterior lamina cribrosa depth; PLCD: posterior lamina cribrosa depth; BMOD: Bruch’s membrane opening diameter)

Figure 3. Optic nerve morphological parameters measured on OCT images (ALCD: Anterior lamina cribrosa depth; PLCD: posterior lamina cribrosa depth; BMOD: Bruch’s membrane opening diameter)

Table 2. Quality control analysis for the optic nerve head imaging using SD-OCT

Table 3. The effect on ophthalmic parameters of acute ICP lowering following lumbar puncture. Values depicted are mean (standard deviation)

Figure 4. Top panel: Slopes generated using linear effects model demonstrate a linear relationship between changes in ICP and changes in diastolic blood pressure (DBP), systolic blood pressure (SBP), and intraocular pressure. Lower panel: The effects of acute ICP changes on optic nerve head morphology are not significant. The variables on the horizontal and vertical are shown as mean centered values for each pig at each image meridian

Figure 4. Top panel: Slopes generated using linear effects model demonstrate a linear relationship between changes in ICP and changes in diastolic blood pressure (DBP), systolic blood pressure (SBP), and intraocular pressure. Lower panel: The effects of acute ICP changes on optic nerve head morphology are not significant. The variables on the horizontal and vertical are shown as mean centered values for each pig at each image meridian