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Background: We presented 3 cases of transient cortical blindness secondary to contrast medium toxicity after endovascular procedures for intracranial aneurysms. We also reviewed the literature and found 12 cases of contrast-induced cortical blindness after endovascular procedures for intracranial aneurysms., Case Description: Two patients (cases 1 and 2) noted bilateral blindness 5 and 6 hours, respectively, after awakening from general anesthesia following aneurysm treatment. The third patient (case 3) noted bilateral blindness during vertebral angiography under local anesthesia. Immediate angiography was performed in case 1 and showed no arterial occlusion. Computed tomography was performed in case 2 and showed brain edema. Magnetic resonance imaging was performed in all 3 cases, and cases 2 and 3 showed abnormal presentation on fluid attenuated inversion recovery sequences. With the use of corticosteroid and intravenous hydration, cortical blindness resolved within 1 week in 2 patients (Cases 1 and 2). The remaining patient (case 3) had incomplete quadrantanopia 3 months after blindness onset., Conclusions: Based on our experience and the literature reports, we advocate corticosteroid and intravenous hydration for patients with contrast-induced cortical blindness after endovascular procedures for intracranial aneurysms., (Copyright © 2018 Elsevier Inc. All rights reserved.)

An elderly gentleman presented with acute onset of bilateral visual blurring and generalized headache after 1 week post electrocution injury. Clinically, the symptoms were attributed to cortical lesion. Magnetic resonance imaging (MRI) of brain revealed bilaterally symmetrical diffusion restriction in parietal and occipital areas. Treatment with intravenous steroids resulted in remarkable improvement in symptoms. Neurological injury secondary to electrocution is a well described entity having a variety of clinical presentation. We put forward our experience with this unique case presenting as post electrocution delayed onset of visual symptoms. Discussion and review of literature related to this clinical entity will also be presented., (Copyright © 2015 Elsevier B.V. All rights reserved.)

Purpose: To alert ophthalmologists to the recognition of cortical visual loss as the presenting feature in patients with reversible posterior leukoencephalopathy syndrome (RPLES). Unique radiologic findings are paramount to the diagnosis., Design: Interventional case report., Methods: A patient was seen with perioperative bilateral cerebral visual loss that was misinterpreted initially as an irreversible ischemic event. Further detailed analysis of the radiologic findings and clinical history led to the correct diagnosis., Main Outcome Measures: Visual acuity and magnetic resonance imaging (MRI) of the brain., Results: Recognition of the correct diagnosis of RPLES led to the institution of antihypertensive therapy and recovery of normal vision., Conclusions: The diagnosis of RPLES should be considered in all patients with acute cerebral visual loss, especially in the setting of recent surgery, blood transfusion, chemotherapy, immunosuppressant use, hypertension, eclampsia, or seizures. Prompt diagnosis requires close collaboration with a radiologist and an emergent MRI study, which ideally should include diffusion-weighted imaging with calculation of an apparent diffusion coefficient map. Differentiation from acute cerebral ischemia is important in order to avoid permanent visual loss by prompt and vigorous treatment of exacerbating factors such as intermittent hypertension. Prompt diagnosis will also help to avoid potentially dangerous invasive procedures such as thrombolytic therapy.