Re: Response to Article Comments – Clement Dubost, M.D, and Thomas Geeraerts, M.D., Ph.D – July 18th, 2011, Sonographic Optic Nerve Sheath Diameter as an Estimate of Intracranial Pressure in Adult TraumaStrumwasser A, Kwan RO, Yeung L, Miraflor E, Ereso A, Castro-Moure F, Patel A, Sadjadi J, Victorino GP. J Surg Res 2011 Apr 1.
Possible Pitfalls When Measuring the Optic Nerve Sheath with SonographyWe read with great interest the article by Strumwasser et al.  showing a poor correlation between sonographic optic nerve sheath diameter (ONSD) and invasive intracranial pressure (ICP). These results are surprising as two recent meta-analyses have shown a good relationship between ONSD and ICP [2, 3].