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76 Oculopalatal TremorRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis is a usually vertical, pendular nystagmus associated with synchronous rhythmic movement of the palate, developing months after a severe brain stem stroke. The stroke involves the dentato-rubro-olivary tract (Mollaret's triangle). MRI can show hypertrophy of the inferior olivary nucleus in the m...
77 Optic Nerve Sheath FenestrationRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitOptic nerve sheath fenestration is performed to manage papilledema causing progressive loss of vision , due to raised intracranial pressure from Idiopathic Intracranial Hypertension or Cerebral Venous Sinus Thrombosis. The procedure is usually performed in cases of severe visual field loss or when m...
78 Periodic Alternating NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitPAN is a nystagamus characterized by a cycle of uniderectional jerk nystagamus for 60-90 sec , a pause for 10-20 sec and a a cycle of a jerk nystagmus in the opposite direction for 60-90 sec. It is found in brain stem and cerebellar conditions as well as ocular albinism ( as in this patient).
79 Pulsating ExophthalmosRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis patient had brain surgery with bone removal resulted in transmission of CSF pulsation into the orbit and pulsating exophthalmos. This sign can also be seen in patient with neurofibromatosis with hypoplasia of the sphenoid wing bone.
80 Square Wave Jerks with ContrapulsionRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitA patient with history of brain stem stroke 2 months ago (right hemifacial anesthesia , left sided weakness and bulbar symptoms dysphagia) comes complaining of oscillipsia , binocular vertical diplopia). On exam he had a vertical tropia of 3-4 PD (Skew deviation), dissociated nystagmus , and saccadi...
81 See-Saw NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitSee-saw nystagmus is a localizing nystagmus to lesions of the sellar and parasellar region. "It's characterized by synchronous elevation and intorsion of one eye and depression and extorsion of the contra lateral eye . This patent has a craniopharyngioma, which was operated twice, optic atrophy and ...
82 See-Saw NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis nystagmus localizes to lesions supra/parasellar region (Large sellar and hypothalamic lesion) and is characterized by a see saw movement of elevation/intorsion of one eye and depression/extorsion of the other eye in a pendular fashion. This patient had a large pituitary macro-adenoma with supra...
83 Temporal Artery BiopsyRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis is a video of Superficial Temporal Artery Biopsy done under local anaesthesia for a patient who was suspected to have Giant Cell Arteritis (GCA. GCA is vasculitis of the medium sized vessels than can lead to permanent visual loss by causing Arteritis Ischemic Optic Neuropathy. The diagnosis of ...
84 Upbeat NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitA patient with a brain stem syndrome due to demyelination and upbeat nystagmus.
85 AnisocoriaKarl C. Golnik, MD, Departments of Ophthalmology, Neurology & Neurosurgery, University of Cincinnati & The Cincinnati Eye InstituteThis is a narrated powerpoint presentation that covers the common causes of anisocoria.
86 Pertinent Pupillary ProblemsKarl C. Golnik, MD, Departments of Ophthalmology, Neurology & Neurosurgery, University of Cincinnati & The Cincinnati Eye InstitutePupil Exam is a narrated powerpoint that covers the basic of examining pupils.
87 Superonasal Transconjunctival Optic Nerve Sheath Decompression (stONSD)Kevin E. Lai, MD, Dean McGee Eye Institute, Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, Neuro-Ophthalmology Institute, Indianapolis, IN; Kenneth C. Lao, MD, Dean McGee Eye Institute, Department of Ophthalmology, University of Oklahoma Health Science...This video demonstrates the surgical technique and outcomes of a modified medial transconjunctival approach to optic nerve sheath decompression (ONSD).
88 Aberrant Regeneration Third NerveGregory P. Van Stavern, MD, Associate Professor, Ophthalmology & Visual Sciences and Neurology, Washington University School of Medicine48 year old woman S/P rupture and repair of right sided posterior communicating artery aneurysm Video shows residual partial right third nerve palsy, with aberrant regeneration, causing a pseudo Von Graefe's sign (elevation of the right upper eyelid with attempted infraduction of the right eye)
89 Nerve Conduction Studies and Electromyography BasicsJamison Hofer, DO, Kiel Woodward, MD, Ezequiel Piccione, MD, Sachin Kedar, MBBS, MD, University of Nebraska Medical CenterPresentation covering an overview of the basics of nerve conduction studies and electromyography. Includes coverage of common indications, limitations and contraindications. There is an explanation for how to order the test, and how to understand the results.
90 Video introduction to the NExT curriculum collection.Sachin Kedar, MD, Editor-in-ChiefIntroduction to the NANOS NExT ebook. Explains the purpose of the collection. Covers the sections of the outline, and describes the learning levels and objectives.
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