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Title | Description | Type |
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Test Duane | | |
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Basic Neurologic Exam | Demonstration of a basic neurologic examination. | Image/MovingImage |
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Basic Neurologic Exam: Coordination | Demonstration of a coordination examination. | Image/MovingImage |
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Basic Neurologic Exam: Cranial Nerves | Demonstration of a cranial nerve examination. | Image/MovingImage |
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Basic Neurologic Exam: Mental Status | Demonstration of a mental status examination. | |
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Basic Neurologic Exam: Motor Examination | Demonstration of a motor examination. | Image/MovingImage |
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Basic Neurologic Exam: Sensory | Demonstration of a sensory examination. | Image/MovingImage |
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Basic Neurologic Exam: Station and Gait | Demonstration of a station and gait examination. | Image/MovingImage |
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2-4a - Disc Anatomy | The optic disc appearance is determined by: the size of the eye, the size of the scleral canal, how the nerve is inserted into the globe, the appearance of the lamina cribrosa, where myelination stops, and what is left behind in normal development. Even though this is a disc with a very large cup, i... | Image |
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2-53a - Venous Pulsations | On the disc, look for spontaneous venous pulsations. Spontaneous venous pulsations can be seen in the large trunks of veins at the level of the disc margin. They are normally present and seen in 37-90% of normals -- depending on the experience of the examiner and the shape of the disc. The spontaneo... | Image |
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2-53b - Venous Pulsations | On the disc, look for spontaneous venous pulsations. Spontaneous venous pulsations can be seen in the large trunks of veins at the level of the disc margin. They are normally present and seen in 37-90% of normals -- depending on the experience of the examiner and the shape of the disc. The spontaneo... | Image |
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2-6a - Little Red Discs | | Image |
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2-6b - Little Red Discs | | Image |
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2-7a - Disc Anatomy | The optic disc appearance is determined by: the size of the eye, the size of the scleral canal, how the nerve is inserted into the globe, the appearance of the lamina cribrosa, where myelination stops, and what is left behind in normal development. Even though this is a disc with a very large cup, i... | Image |
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The 3 Step Test: Looking for a 4th Nerve Palsy | Description of the three step test (3 step test) used when looking for a 4th nerve palsy. | Text |
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3-56a - Sarcoid | | Image |
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3-59a - Glioma | This 45-year-old man presented with vision loss in his right eye; his examination showed severe disc swelling in this eye and vision loss on visual field testing (3-59a). MRI with fat saturation and enhancement and MRI with T2 signals also confirm an enlarged optic nerve. (3-59c) Excisional biopsy o... | Image |
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3-59c - Glioma | This 45-year-old man presented with vision loss in his right eye; his examination showed severe disc swelling in this eye and vision loss on visual field testing (3-59a). MRI with fat saturation and enhancement and MRI with T2 signals also confirm an enlarged optic nerve. (3-59c) Excisional biopsy o... | Image |
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3-60a - Meningioma | This 35 year old woman presented with slowly progressive loss of central acuity to 20/30. 3-60a: Her visual field shows progressive restriction over time. 3-60b: Her disc was chronically swollen, with refractile bodies on the disc surface. 3-60d: The CT axial scan showed an enlarged calcified optic... | Image |
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3-60b - Meningioma | This 35 year old woman presented with slowly progressive loss of central acuity to 20/30. 3-60a: Her visual field shows progressive restriction over time. 3-60b: Her disc was chronically swollen, with refractile bodies on the disc surface. 3-60d: The CT axial scan showed an enlarged calcified optic... | Image |
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3-60d - Meningioma | This 35 year old woman presented with slowly progressive loss of central acuity to 20/30. 3-60a: Her visual field shows progressive restriction over time. 3-60b: Her disc was chronically swollen, with refractile bodies on the disc surface. 3-60d: The CT axial scan showed an enlarged calcified optic... | Image |
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3-64a - Shunt Vessels (CRVO) | This man with a chronic CRVO and retino-choroidal collaterals developed AION and his collaterals disappeared. CRVO with retinochoroidal collaterals is almost always associated with multiple peripheral dot and blot hemorrhages as well as nerve fiber layer infarcts of various ages. Notice the retino-c... | Image |
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3-65 - Shunt Vessels (Glaucoma) | Chronic end-stage glaucoma produces high pressure that interferes with venous drainage from the disc and broad smooth venous collaterals drain the disc centrifugally to the disc margin where they drain. | Image |
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3-66a - Shunt Vessels (Post-papilledema) | The retino-choroidal collaterals seen with chronic papilledema begin with a "Hairnet" of telangiectasias that gradually winnow down to one or more large collateral tortuous draining channel. The presence of these vessels is evidence of long standing disc swelling. When the CSF pressure is lowered, t... | Image |
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3-66d - Shunt Vessels (Post-papilledema) | The retino-choroidal collaterals seen with chronic papilledema begin with a "Hairnet" of telangiectasias that gradually winnow down to one or more large collateral tortuous draining channel. The presence of these vessels is evidence of long standing disc swelling. When the CSF pressure is lowered, t... | Image |