To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Postoperative visual loss (POVL) is a rare but catastrophic complication of spine surgery. The extremely low incidence has made its study and prevention a challenge for neuroanesthesiologists. This chapter presents a case study of a 62-year-old female who presented for a revision L4-5 foraminotomy and L4-S1 transverse lumbar interbody fusion. There are multiple causes of POVL, including cortical infarction, direct injuries to the eye and ischemic injuries to the retina and optic nerve. The most common permanent injuries are ischemic in nature including central retinal artery occlusion (CRAO) and ischemic optic neuropathy (ION). Many risk factors have been proposed yet understanding of the etiology of ION remains inadequate. Until we have a better understanding of these risk factors, careful attention to the eyes, staged procedures, vigilance with regard to intraocular pressure and the optimization of oxygen-carrying capacity are the best preventative measures available.