61.
Programa de cálculo de las constantes ópticas de materiales opacos en Fortran IV
- Besteiro Rafales, Josefina; Lacasta Núñez-Polo, F.; López Soler, Ángel; Bosch Figueroa, J. M.; Font-Altaba, M.
Cuando se desea calcular las constantes ópticas n, k a partir de las medidas de reflectancia en aire y aceite de inmersión,
es necesario manejar gran cantidad de datos experimentales,
sobre todo si se pretende construir las curvas de dispersión de estas constantes desde los 400 nm a los 1.100 nm, efectuando series de 100 lecturas cada 10 nm. Para manejar esta gran cantidad de datos se propone el programa denominada
IRCA escrito en FORTRAN IV para utilizar con computadoras
IBM modelos 1130 o 360.
62.
Glioma del nervio óptico. A propósito de un caso
- Jerez Olivera, E.; Ruiz Pérez, A.; Baeta Bayón, L.; Cabrera Marrero, B.; Crespo Llorden, A.
Caso clínico: Presentamos el caso de un varón de 32 años de edad que acudió a consulta por alteración de la visión del ojo derecho de 4 meses de evolución. La exploración oftalmológica mostró una excavación papilar asimétrica. En imagen de resonancia magnética nuclear se objetivó una lesión tumoral en el nervio óptico ipsilateral.
Discusión: Los gliomas de la vía óptica son lesiones poco frecuentes que se asocian predominantemente a pacientes con Neurofibromatosis tipo 1, no siendo éste nuestro caso. Así mismo se descartó la posibilidad de que se tratara de un glioma maligno. Dada la evolución lenta e impredecible de...
63.
Isolated congenital optic disc anomalies
- AAO/NANOS
Images 92_64 and 92_67 demonstrate the characteristics of optic disc drusen on flourescein angiography. This image displays the nodular staining of the drusen without Images 92_64 and 92_67 demonstrate the characteristics of optic disc drusen on flourescein angiography. This image displays the nodular staining of the drusen without leakage. Pair with 92_63 and 92_64.
64.
Isolated congenital optic disc anomalies
- AAO/NANOS
Patients with hypoplasia of the optic nerve may have normal or subnormal visual acuity or visual field. The condition may be unilateral or bilateral. Optic nerve hypoplasia may be associated with other intracranial midline defects, and involvement of the hypothalamic-pituitary axis may result in neuro-endocrinologic abnormalities.
65.
Observer Curve and Object Detection From the Optic Flow
- Anuj Dev; Ben J.A. Kröse; Leo Dorst; Frans C. A. Groen
A collision is an event where the robot path intersects with an object in the environment. Collisions can be desired if the object is a goal, or undesired if the object is an obstacle. We call the place of intersection a collision point. Prediction of collision points relies on a continuity assumption of the robot motion such as constant velocity. The robot is equipped with monocular vision to sense its environment. Motion of the robot results in motion of the environment in the sensory domain. The optic flow equals the projection of the environment motion on the image plane. We...
66.
Septo-optic dysplasia: case report
- Pierre Filho,Paulo de Tarso P.; Bovo,Lucas Borelli; Marcondes,Ana Maria
The clinical triad of septo-optic dysplasia (SOD) comprises the absence of the septum pellucidum, congenital optic nerve dysplasia, and multiple endocrine disorders. When any two of these factors are present, the condition is defined as an incomplete form of SOD. The authors report the case of an incomplete form of SOD in a 9-year-old boy with low vision and nystagmus present from birth. The bilateral ophthalmoscopic examination revealed small papillae with double contour images. Magnetic resonance imaging showed hypoplasia of the optic nerve bilaterally, chiasm and absence of the septum pellucidum.
67.
Isolated congenital optic disc anomalies
- AAO/NANOS
This patient has known pseudoxanthoma elasticum (an uncommon elastic tissue disorder characterized by plaquelike skin folds [plucked chicken skin] and degeneration of collagen fibers involving multiple systems, including the GI tract and heart), angoid streaks, and optic disc drusen.
68.
Isolated congenital optic disc anomalies
- AAO/NANOS
Images 92_64 and 92_67 demonstrate the characteristics of optic disc drusen on flourescein angiography. This image shows the early arteriovenous phase, with irregular dye uptake and focal hypoflourescence superotemporally. Pair with 92_63 and 92_67
69.
Isolated congenital optic disc anomalies
- AAO/NANOS
This patient has known pseudoxanthoma elasticum (an uncommon elastic tissue disorder characterized by plaque-like skin folds [plucked chicken skin] and degeneration of collagen fibers involving multiple systems, including the GI tract and heart), angioid streaks, and optic disc drusen.
70.
Optic disc swelling from optic glioma
- William F. Hoyt, M.D. Professor Emeritus of Ophthalmology, Neurology and Neurosurgery University of California, San Francisco, Department of Ophthalmology
Right eye. Optic glioma with disc swelling.
71.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
72.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
73.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
74.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
75.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
76.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
77.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
78.
Isolated Optic Neuritis/Neuropathy
- AAO/NANOS
The patient is a 62-year-old female who presented in August 1996 with visual loss OD that she first noted as loss of her superior field in May 1996. She felt that it had been static since, and perhaps was even a little better in the week before she was seen. There was no pain, even with ocular rotation, no change in her perception of color or brightness, and no antecedent systemic illness. Her past medical history included several years of hypertension and arthritis of the lower back for 10 years, and she had no constitutional signs of temporal arthritis. The...
79.
Fiber. Optic
- Ma Calhoun,Paul Ku
the Deep Space Network radio science experiments (probing outer planet
atmospheres, rings, gravitational waves, and very long-base require
phase noise frequency signals the user locations. locations
radio exciters and down-converters are cone areas m high
antennas or the 70 m located several hundred meters the reference frequency
standards. Over the past three years, optic distribution links have replaced coaxial cable
distribution reference frequencies to these antenna sites. Optical are the preferred medium
distribution because low attenuation, immunity to and temperature stability.
A new network Beam antennas under construction in the
requires hydrogen maser stability at tens kilometers the standards central
location. `l'he topic this paper is the design and an...
80.
Isolated congenital optic disc anomalies
- AAO/NANOS
This optic disc displays multiple drusen. Note the pseudopapilledema here. One can differentiate this from true papilledema in that there is no obscuration of the vessel by the peripapillary nerve fiber layer as they cross the disc margin. This photograph was taken with barrier filters in place, but no flourescein infused.
