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Journal of Neuro-Ophthalmology, 1998
The purpose of this case report was to present a rare case of optic disk tubercle. The optic disk edema resolved on antituberculous therapy with recovery of vision. We concluded that visual loss from an optic disk tubercle can be the presenting sign of tuberculosis.
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The purpose of this case report was to present a rare case of optic disk tubercle. The optic disk edema resolved on antituberculous therapy with recovery of vision. We concluded that visual loss from an optic disk tubercle can be the presenting sign of tuberculosis.
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Use of optical fiber heads for optical disks
Applied Optics, 1985The ability to generate high quality lenses on the end of single mode optical fibers makes it possible to consider a large number of design changes in the development of a head for an optical disk system. It is these potential design changes which we wish to explore in discussing characteristics of a fiber optics head for an optical disk mass storage ...
F S, Barnes, K S, Lee, A W, Smith
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CAVERNOUS HEMANGIOMA OF THE OPTIC DISK
RETINAL Cases & Brief Reports, 2012To report a case of an unusually large cavernous hemangioma of the optic disk.Case report with funduscopic, fluorescein angiography, and magnetic resonance imaging correlations. A 20-year-old woman with no ocular or systemic history was diagnosed with cavernous hemangioma of the optic disk in a routine eye examination.Fundus examination revealed an ...
Marios P, Giannakopoulos +3 more
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Neurologic Clinics, 1983
Ophthalmoscopic abnormalities of the optic disk may signal the presence of acquired intracranial disease; or the disk anomaly may be congenital and only mimic an acquired disk change; or the disk anomaly may be acquired but caused by a purely ocular disease. The abnormal disk may be elevated, excavated, or flat and may be abnormal in color, contour, or
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Ophthalmoscopic abnormalities of the optic disk may signal the presence of acquired intracranial disease; or the disk anomaly may be congenital and only mimic an acquired disk change; or the disk anomaly may be acquired but caused by a purely ocular disease. The abnormal disk may be elevated, excavated, or flat and may be abnormal in color, contour, or
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Optic Disk Edema in Sarcoidosis
American Journal of Ophthalmology, 1979A 24-year-old woman had bilateral optic disk edema. A granulomatous uveitis and macular edema subsequently ensued. Histologic examination of a biopsy specimen taken from an area of marked hilar adenopathy revealed noncaseating epithelioid cell tubercles.
W M, Hart, R M, Burde
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Aplasia of the Optic Nerve and Disk
American Journal of Ophthalmology, 1977To clarify the nature of aplasia of the optic nerve and disk, a rare congenital anomaly defined as absence of the optic nerve and disk, retinal ganglion cells, and retinal blood vessels, we evaluated all the cases with this designation in the files.
J J, Weiter, I W, McLean, L E, Zimmerman
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Applied Optics, 1978
The optics of a video disk player are described. The bandwidth and the playing time of a disk had been specified at 12 MHz and 30 min, respectively. A readout photodetector signal of high quality can be obtained with a well-corrected objective having a numerical aperture of at least 0.4.
G, Bouwhuis, J J, Braat
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The optics of a video disk player are described. The bandwidth and the playing time of a disk had been specified at 12 MHz and 30 min, respectively. A readout photodetector signal of high quality can be obtained with a well-corrected objective having a numerical aperture of at least 0.4.
G, Bouwhuis, J J, Braat
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Optic Disk Hemorrhages in Glaucoma
American Journal of Ophthalmology, 1994We evaluated the frequency and location of optic disk hemorrhages by examining morphometrically color stereo optic disk photographs of 1,505 glaucomatous eyes and 595 normal eyes. Disk hemorrhages were found in 61 of the glaucomatous eyes (4.1%) and in none of the normal eyes.
J B, Jonas, L, Xu
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Congenital Anomalies of the Optic Disk
American Journal of Ophthalmology, 1976Six patients had congenital anomalies of the optic disk: epipapillary fibrous tissue, peripapillary pigmentary disturbance, and anomalies in the size of the optic disk and in the retinal vessels. Congenital anomalies of the optic disk form a spectrum in which many of the ophthalmoscopic features are shared and in which visual function varies.
P E, Jensen, R E, Kalina
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Optical Disk Cluster Drive and Its Optical Filler Disk
Japanese Journal of Applied Physics, 1999Optical memory has the advantage of large capacity, media removability and high reliability. However, when it is used in such systems as a home server, video on demand or network server, the data transfer rate is too low. Use of an optical cluster drive is one of the promising methods of increasing the data transfer rate.
Kunimaro Tanaka +2 more
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