Results 151 to 160 of about 3,248,315 (198)
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Measure of Visual Function

2022
This chapter describes various methods of the assessment of visual function used for assessing disease progression and treatment response in patients with retinitis pigmentosa (RP). These methods include full-field stimulus testing (FST), near-infrared autofluorescence (NIR-AF), quantitative fundus autofluorescence (qAF), and quantitative near-infrared
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Physiologic functional imaging in “functional” visual loss

Survey of Ophthalmology, 1996
Neuroimaging with nuclear medicine techniques permits assessment of brain function by measurement of metabolism or blood flow. Such studies complement the anatomic information derived from computed tomography (CT) or magnetic resonance imaging (MRI).
Jonathan Wirtschafter   +3 more
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Visualizing Nonlinear Implicit Functions

Civil-Comp Proceedings, 2012
This paper describes a novel procedure for visualization (contouring) of implicit functions. It is based on a combination of the Newton algorithm and the ‘arc-length’ method. The new procedure has many advantages e.g. alleviates the singularity problem of the Newton algorithm.
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Higher cortical visual function

Current Opinion in Ophthalmology, 1998
Higher cortical visual function continues to be explored with both lesion and functional imaging studies. Studies with functional MRI confirm that the fusiform gyri are involved in color and face perception, and show multiple regions participating in motion perception, including V5, V3A, and a new area, the kinetic occipital region. There were numerous
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Visual Function Testing

Journal of Clinical Neurophysiology, 1994
Visual function tests provide criteria to determine the extent and type of retinal malfunction in patients with retinal disease. This chapter provides an overview of some selected measures of retinal function that are useful as aids in diagnosis of retinal diseases, particularly those that involve the cone and rod photoreceptors.
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Functional Visual Anatomy

2003
A basic knowledge of how the visual field is represented at different levels of the neuraxis is fundamental to the performance of perimetry. Without this knowledge, it is impossible to intelligently select a perimetric program, decide among perimetric techniques, or appropriately guide the exploration of the field during manual perimetry.
Jason J. S. Barton, Michael Benatar
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Visual functions and functional vision

International Congress Series, 2005
Abstract ICF and ICIDH recognize various aspects of vision loss. Within this framework we use the term Visual functions to describe how well the eye and visual system function; functional vision is used to describe how well the person functions in vision-related activities.
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Visual—Motor/Visual—Perceptual Function

1994
Visual—motor and visual—perceptual dysfunction may have a significant, adverse influence on a child’s school performance. Although visual—motor and visual—perceptual skills are highly interrelated, they also are distinct functions. A child with a visual—motor problem may not exhibit a visual—perceptual deficit; similarly, the reverse is also true (see ...
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Partial recovery of visual function in a blind patient after optogenetic therapy

Nature Medicine, 2021
J-A Sahel, Chloé Pagot, Angelo Arleo
exaly  

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