Clinical assessment of noninvasive intracranial pressure absolute value measurement method
Authors: David S, Marcinkevicius E, Pranevicius M, Pranevicius O, Ragauskas A, Matijosaitis V, Zakelis R, Petrikonis K, Rastenyte D, Piper I, Daubaris G, Miller MM, Chang T, Keating R, Sable C, Ragauskas A, Matijosaitis V, Zakelis R, Petrikonis K, Rastenyte D, Piper I, Daubaris G.
Ragauskas et al.(1) demonstrated that when external pressure is applied, the orbit tends to equilibrate flow in the ipsilateral ophthalmic artery (OA) when its level approaches intracranial pressure (ICP). The authors detected this relationship by making the OA into a "natural pair of scales, in which the intracranial segment of the OA is compressed by extracranial pressure (Pe) applied to the orbit."
Full text and source: Neurology
Neurology. 2013 Jan 29;80(5):507-8. doi: 10.1212/WNL.0b013e318281bfa4.