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Title | Description | Type |
151 |
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Oculopalatal Myoclonus (PPT) | Oculopalatal myoclonus (OPM) Rhythmic oscillations of eyes and palate. Occurred after specific brainstem injury from stroke, following stenting. Related Video: http://content.lib.utah.edu/u?/EHSL-Moran-Neuro-opth,128 Disease/Diagnosis: Oculopalatal myoclonus | Image/MovingImage |
152 |
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Opsoclonus | Example of patients with opsoclonus, a saccadic abnormality. Discussion of characteristics of opsoclonus, such as involuntary, rapid, brief, random, conjugate saccades. Discussion of possible causes, including brain stem encephalitis (as in first patient), a paraneoplastic effect, tumors, and drug t... | Image/MovingImage |
153 |
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Opsoclonus | Example of patients with opsoclonus, a saccadic abnormality. | Image/MovingImage |
154 |
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Optic Disc Pallor Pseudo and Real | Discussion of the causes of optic disc pallor. | Text |
155 |
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Optic Disc: Anatomy, Variants, Unusual discs | Discussion of viewing the optic disc. Includes development of direct ophthalmoscope. Covers normal optic disc and nerve fiber; nerve fiber loss and defects; cilioretinal arteries; venous anomolies; papilledema; pseudopapilledema; myopic disc; hyperoptic disc; little red discs; megallopapilla; myelin... | Text |
156 |
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Optic Nerve Tumors Benign and Malignant | Discussion of optic nerve tumors including meningioma and glioma. | Text |
157 |
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Papilledema 2013 | Discussion of papilledema, the swelling due to increased pressure. | Text |
158 |
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Paradoxical Constriction of Pupils to Darkness (Flynn Phenomenon) | Example of patients both with and without paradoxical constriction of pupils. Observed in many congenital retinal disorders, such as achromatopsia, congenital stationary night-blindness, and Leber's congenital amaurosis. Sometimes seen in optic nerve disorders, such as dominant optic atrophy. | Image/MovingImage |
159 |
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Parinaud's Syndrome | Two examples of patients with Parinaud's syndrome, a dorsal midbrain syndrome. Discussion of hallmarks of this syndrome, including convergence retraction nystagmus, vertical gaze palsies, light-near dissociation, and Collier's Sign. Discussion of age-dependent disorders associated with this syndrome... | Image/MovingImage |
160 |
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Pathophysiology of Signs Associated with a Tonic Pupil | Pathophysiology of signs associated with a tonic pupil. Normally, all parasympathetic fibers of the third cranial nerve synapse in the ciliary ganglion (top). Most postganglionic fibers innervate the ciliary muscle (dashed lines). After injury to the ciliary ganglion, the pupil becomes denervated an... | Image |
161 |
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Periodic Alternating Nystagmus | Example of a patient with periodic alternating nystagmus, showing an alternation between left-beats and right-beats as the patient maintains forward gaze. Nystagmus maintain horizontal direction regardless of position of gaze. | Image/MovingImage |
162 |
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Physiologic (End-Gaze) Nystagmus | Demonstration of physiological nystagmus, where oscillations do not represent pathology, but occur when the patient's gaze is drawn too far laterally. | Image/MovingImage |
163 |
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Progressive Supranuclear Palsy | Progressive Supranuclear Palsy | Image/MovingImage |
164 |
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Progressive Supranuclear Palsy | Example of patient with progressive supranuclear palsy. Discussion of difference between saccadic movement in supranuclear palsy and nystagmus. Shows saccadic intrusions in forward gaze, pursuit, saccades, and doll's head maneuver. | Image/MovingImage |
165 |
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Pulsating Exophthalmos | Example of a patient with neurofibromatosis with an absent sphenoid wing. Shows left eye pulsating back and forth with the pulse from front and side views. | Image/MovingImage |
166 |
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Pupil Exam | Demonstration of pupil examination. | Text |
167 |
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Pupil Signs in a 32-year-old Woman with Right-sided Adie's Pupil | Pupil signs in a 32-year-old woman with right-sided Adie's pupil. The right pupil is larger than the left pupil (top), reacts poorly to direct light stimulation (second panel), and better in response to near stimulation (third panel). The right pupil also shows a supersensitive response 30 minutes a... | Image |
168 |
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Pupillogram Demonstrating Paradoxical Pupillary Constriction to Darkness | Pupillogram demonstrating paradoxical pupillary constriction to darkness in four patients with congenital achromatopsia. Note that the pupils initially constrict when the light is extinguished. (Price MJ, Thompson HS, Judisch GF et al: Pupillary constriction to darkness. Br J Ophthalmol 1981;69:205-... | Image |
169 |
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Pupillogram of a Healthy Young Subject | Pupillogram of a healthy young subject showing continuous pupillary oscillations of both pupils when light is sustained, indicated by the dark arrow at the top of the recording. Note that the oscillations of the pupils are synchronous and demonstrate variable amplitude and frequency. This pattern of... | Image |
170 |
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RAPD Present | This clip demonstrates the technique used to determine that Relative Afferent Pupillary Defect (RAPD) is present in a patient. | Image/MovingImage |
171 |
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Rebound Nystagmus | Example of a patient with rebound nystagmus, where the oscillations alternate direction as the patient shifts gaze in different directions. Discussion of relationship to disease and disorders of the cerebellum, including degenerations of the cerebellum, infarction, and demyelination. | Image/MovingImage |
172 |
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Relationship Between Age and Pupil Size | Relationship between age and pupil size, determined using an infrared flash photograph technique with subjects placed in darkness for 3 minutes. The numbers above the abscissa indicate the number of subjects tested in each age range. (Reprinted with permission of Loewenfeld IE: "Simple, central" ani... | Image |
173 |
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Retinal Fluorescein Angiography | This slide set provides a brief description of Retinal Fluorescein Angiography. First introduced in 1960, sodium fluorescein, a dye, is administered through an angiocatheter (3-5cc) by a nurse or technician. The dye reaches the central retinal artery after passing through the heart and lungs. | Text |
174 |
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Retinitis Pigmentosa Disease of Rods | Discussion of retinitis pigmentosa which is a retinal/choroidal degeneration caused by various genetic defects. | Text |
175 |
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Retino-choroidal Vessels or Optociliary Veins or Ciliary Shunt | Overview of retino-choroidal collaterals, which are potential telangiectatic connections between the retina and choroidal circulation. Although sometimes called "shunts", these collaterals are between the retinal venous circulation and the choroidal venous circulation. | Text |