Results 311 to 320 of about 810,739 (352)
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2010
Visual disturbances may be caused by diseases of the optic disc, optic nerve, optic chiasm, optic tract, lateral geniculate nucleus, optic radiations, and occipital lobe of the brain, as well as other brain areas involved in complex visual processing.
Sara Ajina, Christopher Kennard
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Visual disturbances may be caused by diseases of the optic disc, optic nerve, optic chiasm, optic tract, lateral geniculate nucleus, optic radiations, and occipital lobe of the brain, as well as other brain areas involved in complex visual processing.
Sara Ajina, Christopher Kennard
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Computed Tomography of the Visual Pathways
International Ophthalmology Clinics, 1979Many articles have discussed the anatomy and pathology of the orbits. Although this area is exquisitely visualized via computed tomography, the bulk of the visual apparatus lies behind the optic canal. A variety of pathologic conditions will manifest themselves by changes in the visual fields.
Melvin G. Alper, Charles M. Citrin
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Anatomy of the Visual Pathways
Journal of Glaucoma, 2013The axons of the retinal ganglion cells form the optic nerve. The two optic nerves meet at the optic chiasm, where the nerve fibers originating in the nasal retina of each eye decussate to join the temporal fibers of the fellow eye. From the chiasm, the same axons continue on as the optic tract.
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Adaptive encoding in the visual pathway
Network: Computation in Neural Systems, 2003In a natural setting, the mean luminance and contrast of the light within a visual neuron's receptive field are constantly changing as the eyes saccade across complex scenes. Adaptive mechanisms modulate filtering properties of the early visual pathway in response to these variations, allowing the system to maintain differential sensitivity to ...
Alireza Boloori +2 more
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New England Journal of Medicine, 1986
Oculocutaneous albinism is an autosomal recessive disorder that is distinguished by uniform hypopigmentation of the skin, hair, and eyes.
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Oculocutaneous albinism is an autosomal recessive disorder that is distinguished by uniform hypopigmentation of the skin, hair, and eyes.
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Neurology, 1996 To the Editor: In a recent study of albinism performed by Hedera et al. [1] utilizing the BOLD technique of functional MRI the authors stated that nystagmus was the likely reason for a decreased response …
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Gliomas of the Anterior Visual Pathway
Journal of Neuro-Ophthalmology, 1994Gliomas of the anterior visual pathway are rare orbital lesions accounting for 65% of all intrinsic optic nerve tumors. These lesions occur principally among children in the first decade of life. They appear to be true neoplasms that characteristically show early growth, followed by stability in many patients.
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Intracranial pathology of the visual pathway
European Journal of Radiology, 2004Intracranial pathologies involving the visual pathway are manifold. Aligning to anatomy, the most frequent and/or most important extrinsic and intrinsic intracranial lesions are presented. Clinical symptoms and imaging characteristics of lesions of the sellar region are demonstrated in different imaging modalities.
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2011
Functional magnetic resonance imaging (fMRI) of the human brain provides images of changes in local blood flow and oxygenation that are evoked by sensory, motor, or cognitive events. Functional MRI has been used since 1991 [1] to identify areas of the brain that respond to visual stimulation and the performance of vision-related tasks.
Lotfi Hacein-Bey +8 more
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Functional magnetic resonance imaging (fMRI) of the human brain provides images of changes in local blood flow and oxygenation that are evoked by sensory, motor, or cognitive events. Functional MRI has been used since 1991 [1] to identify areas of the brain that respond to visual stimulation and the performance of vision-related tasks.
Lotfi Hacein-Bey +8 more
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1999
Plain film Plain film radiography is no longer used routinely for the evaluation of orbital pathology, but familiarity with normal anatomy remains important when reviewing emergency department trauma radiographs (Fig. 2.1). Cross-sectional anatomy The primary imaging modalities used to examine the orbit and visual pathways in clinical ...
Indran Davagnanam, Jonathan L. Hart
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Plain film Plain film radiography is no longer used routinely for the evaluation of orbital pathology, but familiarity with normal anatomy remains important when reviewing emergency department trauma radiographs (Fig. 2.1). Cross-sectional anatomy The primary imaging modalities used to examine the orbit and visual pathways in clinical ...
Indran Davagnanam, Jonathan L. Hart
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