21.
Optic Neuropathies
- AAO/NANOS
This 28-year-old otherwise-healthy woman was referred to for treatment of what was thought to be optic neuritis OD. Three weeks earlier she had noted a dark inferior scotoma OD that progressed to involve fixation over the next 10-12 days. She experienced photopsias OD at the onset. She had no viral prodrome. In retrospect, she recalled a vague, dull, nonspecific right-sided orbital and forehead ache (not made worse by eye movement) at the onset. When first seen by an ophthalmologist, 1 week after her symptoms began, pertinent findings included 20/40-2 acuity OD, symmetrical color vision using Ishihara plates, equivocal afferent pupillary...
22.
Optic Neuropathies
- AAO/NANOS
This 28-year-old otherwise-healthy woman was referred to for treatment of what was thought to be optic neuritis OD. Three weeks earlier she had noted a dark inferior scotoma OD that progressed to involve fixation over the next 10-12 days. She experienced photopsias OD at the onset. She had no viral prodrome. In retrospect, she recalled a vague, dull, nonspecific right-sided orbital and forehead ache (not made worse by eye movement) at the onset. When first seen by an ophthalmologist, 1 week after her symptoms began, pertinent findings included 20/40-2 acuity OD, symmetrical color vision using Ishihara plates, equivocal afferent pupillary...
23.
Optic Neuropathies
- AAO/NANOS
This 28-year-old otherwise-healthy woman was referred to for treatment of what was thought to be optic neuritis OD. Three weeks earlier she had noted a dark inferior scotoma OD that progressed to involve fixation over the next 10-12 days. She experienced photopsias OD at the onset. She had no viral prodrome. In retrospect, she recalled a vague, dull, nonspecific right-sided orbital and forehead ache (not made worse by eye movement) at the onset. When first seen by an ophthalmologist, 1 week after her symptoms began, pertinent findings included 20/40-2 acuity OD, symmetrical color vision using Ishihara plates, equivocal afferent pupillary...
24.
Optic Neuropathies
- AAO/NANOS
This 28-year-old otherwise-healthy woman was referred to for treatment of what was thought to be optic neuritis OD. Three weeks earlier she had noted a dark inferior scotoma OD that progressed to involve fixation over the next 10-12 days. She experienced photopsias OD at the onset. She had no viral prodrome. In retrospect, she recalled a vague, dull, nonspecific right-sided orbital and forehead ache (not made worse by eye movement) at the onset. When first seen by an ophthalmologist, 1 week after her symptoms began, pertinent findings included 20/40-2 acuity OD, symmetrical color vision using Ishihara plates, equivocal afferent pupillary...
25.
Optic Neuropathies
This 28-year-old otherwise-healthy woman was referred to for treatment of what was thought to be optic neuritis OD. Three weeks earlier she had noted a dark inferior scotoma OD that progressed to involve fixation over the next 10-12 days. She experienced photopsias OD at the onset. She had no viral prodrome. In retrospect, she recalled a vague, dull, nonspecific right-sided orbital and forehead ache (not made worse by eye movement) at the onset. When first seen by an ophthalmologist, 1 week after her symptoms began, pertinent findings included 20/40-2 acuity OD, symmetrical color vision using Ishihara plates, equivocal afferent pupillary...
26.
Optic Neuropathies
- AAO/NANOS
This 28-year-old otherwise-healthy woman was referred to for treatment of what was thought to be optic neuritis OD. Three weeks earlier she had noted a dark inferior scotoma OD that progressed to involve fixation over the next 10-12 days. She experienced photopsias OD at the onset. She had no viral prodrome. In retrospect, she recalled a vague, dull, nonspecific right-sided orbital and forehead ache (not made worse by eye movement) at the onset. When first seen by an ophthalmologist, 1 week after her symptoms began, pertinent findings included 20/40-2 acuity OD, symmetrical color vision using Ishihara plates, equivocal afferent pupillary...
27.
Investigación en Optica Fisiologica en España: Un repaso a los orígenes
- Marcos, Susana; Artal, Pablo; Santamaría, Javier; Aguilar, Mariano; Plaza, Lorenzo
[ES]Se hace una revisión, no exhaustiva, de la historia de la investigación en Óptica Fisiológica que se
desarrollo en España desde los años 40 a los primeros 80. El vigor actual de la investigación en
este campo descansa en parte en la labor pionera reflejada en este artículo.
28.
Aspectos à tomografia de coerência óptica de fosseta congênita de nervo óptico: Relato de 3 casos
- Rosa,Alexandre Antonio Marques; Nakashima,Yoshitaka; Souza,Eduardo Cunha de
Os autores relatam 3 casos de fosseta congênita de disco óptico mostrando, por meio de imagens de tomografia de coerência óptica, os diversos estágios do descolamento retiniano secundário, desde a separação das camadas retinianas mais internas, formação de cistos intraretinianos até o descolamento seroso da retina neurosensorial.
29.
Syphilitic Optic Neuritis
- Joel H. Weinstein, Nancy M. Newman
Three patients experienced acute unilateral optic neuritis as part of the meningeal inflammation.
30.
Anterior Ischemic Optic Neuropathy
- NANOS
Loss of blood supply to the optic nerve results in diminished visual acuity.
31.
Anterior Ischemic Optic Neuropathy
- NANOS
Loss of blood supply to the optic nerve resulting in diminished visual acuity.
32.
Diseño de sistemas ópticos afocales con microlentes de silicio
- Rojas H., A. G.; Renero Carrillo, F.; Calleja A., W.; Pérez R., R.
Presentamos diseños de sistemas ópticos afocales para la longitud de onda de 1:5¹m. Los diseños están basados en el telescopio galileano, formado por una lente negativa de silicio con diámetro 305 ¹m y la lente positiva elegida entre 10 diferentes materiales de acuerdo a su desempeño óptico, evaluado mediante el cálculo de la aberración esférica y la razón de Strehl del sistema. La evaluación muestra que el mejor desempeño es obtenido con el ZnSe.
33.
Isolated congenital optic disc anomalies
- AAO/NANOS
Benign tumors of blood vessels (hemangiomas) may occur on the optic nerve and may mimic optic disc edema.
34.
Isolated congenital optic disc anomalies
- AAO/NANOS
This patient has optic disc drusen and evidence of a superimposed optic neuropathy, including loss of visual field, an ipsilateral afferent pupillary defect, and optic atrophy. Although optic disc drusen typically causes visual field loss without visual acuity loss superimposed, ischemic optic neuropathy may occur in patients with optic disc drusen. However, evaluation for alternative causes of an optic neuropathy should be considered in patients with optic disc drusen and visual acuity loss.
35.
The Structure of the Optic Flow Field
- Mads Nielsen; Ole Fogh Olsen
. The optic flow field is defined as preserving the intensity along flow-lines. Due to singularities in the image at fixed time, poles are created in the optic flow field. In this paper we describe the generic types of flow singularities and their generic interaction over time. In a general analytic flow field, normally the topology is characterised by the points where the flow vanish again subdivided into repellers, attractors, whirls, and combinations hereof. We point out the resemblance, but also the important differences in the structure of a general analytic flow field, and the structure of the optic flow...
36.
Local image structures and optic flow estimation
- S. Kalkan; D. Calow; F. Wörgötter
Different kinds of local image structures (such as homogeneous, edge-like and junction-like patches) can be distinguished by the intrinsic dimensionality of the local signals. Intrinsic dimensionality makes use of variance from a point and a line in spectral representation of the signal in order to classify it as homogeneous, edge-like or junction-like. The concept of intrinsic dimensionality has been mostly exercised using discrete formulations; however, recent work (Felsberg & Krüger 2003; Krüger & Felsberg 2003) has introduced a continuous definition. The current study analyzes the distribution of local patches in natural images according to this continuous understanding of intrinsic dimensionality....
37.
Propagación de pulsos solitónicos en redes ópticas WDM
- Cubillos, Claudio; Olivares, Ricardo
En el presente trabajo, a través de simulación numérica, se evalúa el desempeño de la propagación de pulsos solitónicos en un sistema de transmisión WDM amplificado mediante EDFAs en cascada. Se modulan 4 portadoras ópticas, con secuencias pseudo-aleatorias de 6 bits, a una tasa de 2.5 Gb/s cada una. Como una forma de mejorar el desempeño del sistema de transmisión se ensaya un esquema de fibra con dispersión alternada. Los resultados obtenidos muestran la efectividad de la técnica de administración de la dispersión empleada, reflejada en un menor deterioro de los pulsos propagados.
38.
Isolated congenital optic disc anomalies
- AAO/NANOS
This case of optic disc drusen demonstrates the typical autofluorescence. Pair with 92_69.
39.
Isolated congenital optic disc anomalies
- AAO/NANOS
This case of optic disc drusen demonstrates the typical autofluorescence. Pair with 92_68.
40.
Isolated congenital optic disc anomalies
- AAO/NANOS
This photograph of optic disc drusen demonstrates autoflourescence with flourescein barrier filters in place.
