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](/cms/asset/84208f73-27d1-4c33-a3cb-706d2eeb2855/icey_a_1952604_f0001_oc.jpg)
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)](/cms/asset/6ac5247c-45de-4558-9eff-04fb0d77e65b/icey_a_1952604_f0002_b.gif)
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)](/cms/asset/96719bf1-2f79-4316-b232-9193be5c615d/icey_a_1952604_f0003_b.gif)
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](/cms/asset/c9b4b0a3-c0f8-4d1b-8f92-633f5711b363/icey_a_1952604_f0004_oc.jpg)