Posterior Ischemic Optic Neuropathy after Cervical Spine Surgery

Purpose: To describe a patient with posterior ischemic optic neuropathy (PION) after cervical spine surgery who recovered after treatment.Case summary: A 51-year-old woman presented with eye pain and decreased visual acuity in the left eye, which had begun 8 hours after cervical spine surgery in the prone position. Her best-corrected visual acuity (BCVA) was 20/20 in the right eye and hand motion in the left eye; a relative afferent pupillary defect was present in the left eye. Ductions and versions were normal with pain in the left eye. The results of slit lamp examination, fundoscopic examination, fluorescein angiography, and optical coherence tomography were unremarkable in both eyes. Brain and orbital magnetic resonance imaging showed no abnormal findings in the visual pathway, such as brain infarction or intracranial artery stenosis. The patient was diagnosed with PION in the left eye. Because postoperative anemia had developed with a rapid decrease in hemoglobin from 14.7 g/dL to 9.9 g/dL, red blood cell (RBC) transfusion was performed together with intravenous high-dose steroid therapy and subcutaneous epoetin alfa injection. After 3 weeks, the patient’s BCVA improved to 20/22 in the left eye.Conclusions: Unilateral PION developed after cervical spine surgery in the prone position. Visual improvement was observed after RBC transfusion, intravenous high-steroid therapy, and subcutaneous epoetin alfa injection.

Posterior ischemic optic neuropathy with acute monocular vision loss following clipping of anterior communicating artery aneurysm. A case report and review of literature

Background: The acute postoperative monocular vision loss following anterior communicating artery aneurysm clipping secondary to posterior ischemic optic neuropathy (PION) a rare presentation. Case Description: A 32-year old patient presented with a spontaneous holocranial thunderclap headache for 7 days, associated with vomiting. The SAH was diagnosed with a tiny saccular aneurysm arising from the anterior communicating artery. A left pterional craniotomy and clipping of aneurysm were done. On the 3rd postoperative day, he complained of left-sided complete blindness, and on the 5th postoperative day, his GCS dropped to E4V1M5 with right-sided hemiplegia. MRI brain showed normal optic apparatus with bilateral ACA and left MCA territory infarct. Conclusion: The PION must be kept in the differential diagnosis of post-clipping sudden visual deterioration, especially following anterior communicating artery aneurysm rupture.

The case of posterior ischemic optic neuropathy in patient with multiple sclerosis

A case of posterior ischemic optic neuropathy (PION) in a 41-year-woman with 19 years remission of multiple sclerosisis presented.She had complaints of acute unilateral loss of vision and underwent complex clinical and instrumental examination including B-scan of orbit, color duplex sonography (CDS) of orbital vessels and brachiocephalic arteries, magnetic resonance imaging (MRI). The significant stenosis of internal carotid artery due to its dissection was detected on the affected eye side. The results of ultrasound examinations and MRI excluded demyelinative retrobulbar neuritis (RBN) and determined the signs of blood flow impairment in vessels of orbital part of the optic nerve. Differential diagnostics of PION and RBN required the investigations of blood flow in orbital vessels and brachiocephalic arteries. Key words: posterior ischemic optic neuropathy, multiple sclerosis, retrobulbar neuritis, color duplex sonography, internal carotid artery.

Anterior and posterior ischemic optic neuropathy following liposuction surgery in a previously healthy young woman

A previously healthy 28-year-old female developed bilateral painless vision loss, more prominent in the right eye than in the left, following abdominoplasty and liposuction surgery. Laboratory studies showed severe peri- and post-operative anemia. Over a 5-month follow-up, visual function remained decreased but stable in the right eye and improved in the left eye. This is the second reported case of anterior ischemic optic neuropathy in one eye and posterior ischemic optic neuropathy in the other eye after liposuction. Level of evidence: Level VI, case report study.

Case Report: Posterior Ischemic Optic Neuropathy

Purpose: To report on posterior ischemic optic neuropathies, a vascular disorder that happens in the posterior part of the optic nerve and therefore, usually does not present with optic disc edema. Case Report: This is a case report on a posterior ischemic optic neuropathy with an uncharacteristic presentation. It highlights the importance of understanding the different pathophysiology of PION vs anterior ischemic optic neuropathies in order to help differentiate the two clinically and includes a literature review of posterior ischemic optic neuropathy.