Pre- and Postoperative MRI and Ultrasound Findings in Optic Nerve Sheath Fenestration: One Patient, Two Techniques

Different surgical techniques for optic nerve sheath fenestration (ONSF) have been advocated and there are no conclusive data to demonstrate superiority of one technique over the others. A 17 year old boy presented with progressive profound bilateral visual loss and papilledema. Despite maximal medical therapy his vision continued to decline, which prompted ONSF. Each eye was operated with a different technique, and we present his interesting pre and postoperative MRI and Ultrasound findings.