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Title | Description | Creator |
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Optic Nerve Hypoplasia | This is an illustrated guide to the clinical diagnosis of optic nerve hypoplasia. Optic nerve hypoplasia (ONH) is the most common congenital optic nerve anomaly, with an estimated incidence of 1 in 2287 live births. It may present unilaterally or bilaterally. It is seen in isolation or in associati... | Rahul A. Sharma, MD, MPH; Valérie Biousse, MD |
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MRI Findings in Optic Nerve and Chiasmal Glioma in Childhood | Multiple cases of optic pathway gliomas are demonstrated using MRI imaging. The optic pathway gliomas are identified at multiple points in the optic pathways. Figure 1 : Patient 1: Axial orbital MRI (T1 postcontrast with fat suppression) showing thickening and enhancement of the right optic nerve a... | Jason Peragallo, MD; Valérie Biousse, MD |
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Optic Nerve Head Granuloma from Sarcoidosis | We present a case of optic neuropathy with optic nerve head granuloma as the presenting sign of neurosarcoidosis. Initial patient presentation was notable for a chronic cough and worsening of vision in the left eye. Subsequent imaging revealed multiple brain lesions and the presence of a subcarinal ... | Nithya Shanmugam; Valerie Biousse |
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Nonfunctiong Pituitary Adenoma with Chiasmal Compression | This is a case of large non-functioning pituitary adenoma with mass effect on the optic chiasm inducing loss of optic nerve fibers and subsequent visual field. Figure 1: Fundus photographs demonstrating bilateral temporal optic nerve head pallor Figure 2: Humphrey visual fields demonstrating a bitem... | William Pearce, MD; Valérie Biousse, MD |
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Superior Segmental Optic Nerve Hypoplasia | This is a case of superior segmental optic nerve hypoplasia in a woman with a history of maternal diabetes. A 25 year-old woman noticed a visual field defect in her right eye. Her examination showed: visual acuity: 20/20 OD, 20/20 OS; pupils: trace relative afferent pupillary defect OD; color visi... | Naa Naamuah M. Tagoe, MBChB, FWACS, FGCS; Rahul A. Sharma, MD, MPH; Valérie Biousse, MD; Nancy J. Newman, MD |
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Junctional Scotoma from a Sellar Mass | This is a case of a 55-year-old woman presenting with gradual painless vision loss in both eyes. Although visual acuity was 20/20 in both eyes, there was a left relative afferent pupillary defect and diffuse pallor of both optic nerves (Figure 1). Visual fields (24-2 SITA-Fast) showed a temporal def... | Jonathan A. Micieli, MD; Valérie Biousse, MD |
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Internal Carotid Artery / Posterior Communicating Artery Aneurysm with Third Nerve Palsy Shown on CT Angiogram | Internal Carotid Artery / Posterior Communicating Artery Aneurysm with Third Nerve Palsy Shown on CT Angiogram ; anatomic description of vascular and bony findings on the CTA. - Figure 1 : 51 year-old man complaining of painful binocular diplopia. Orange arrows indicate the direction of gaze. In p... | Samuel Bidot, MD; Amit M. Saindane, MD; Valérie Biousse, MD |
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Osseous Anatomy of the Optic Canals | Anatomic study of the optic canals using 3D reconstruction of CT scan images. Figure 1 : Orbital canal seen through the orbit Figure 2 : Optic canal seen from the intracranial side (1) Figure 3 : Optic canal seen from the intracranial side (2) Figure 4 : Optic canal : axial plane Figure 5 : Optic c... | Samuel Bidot, MD; Amit M. Saindane, MD; Valérie Biousse, MD |
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Optic Nerve Sheath Meningioma | This is a case of an optic nerve sheath meningioma (ONSM) in a 56-year-old woman who presented with gradual, painless vision loss in her left eye. Optic disc photos at presentation showed temporal pallor of the left optic nerve (Figure 1) and Cirrus optical coherence tomography (OCT) of the retinal ... | Jonathan A. Micieli, MD; Valérie Biousse, MD |