Related Experiment Video
Updated: Aug 8, 2025

Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
Published on: April 24, 2020
Sphenoid Bone Dysplasia: A Rare Cause of Compressive Optic Neuropathy Mimicking Glaucoma
Pelin Kıyat1, Dilek Top Kartı2, Özgür Esen3
1İzmir Democracy University, Buca Seyfi Demirsoy Training and Research Hospital, Clinic of Ophthalmology, İzmir, Türkiye.
Abstract:
Fibrous dysplasia is a benign, rare bone disease in which bone is replaced by fibro-osseous tissue to varying degrees. It can present differently depending on the amount of compression caused by the fibro-osseous tissue. Patients are usually asymptomatic, but symptoms related to cranial nerve compression may occur. In this case report, we describe a 45-year-old woman with sphenoid bone dysplasia which compressed the optic nerve and caused unilateral optic disc cupping that mimicked glaucoma. Our case highlights the importance of including compressive etiologies associated with optic disc cupping in the differential diagnosis of glaucoma.
Related Concept Videos
Glaucoma: Overview
Angle Closure Glaucoma: Treatment
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Photoreceptors and Visual Pathways
Prosopagnosia
Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...

