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Seite 1 von 596 Ergebnisse
The relationship between scotoma displacement and preferred retinal loci in low-vision patients with age-related macular degeneration.
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OBJECTIVE
Adaptive strategies in low-vision patients with age-related macular degeneration use preferred retinal loci (PRLs) for the purpose of achieving better visual function. In the process of redirecting the eye toward the PRL, central scotomata are displaced eccentrically. The consequential
Patchy Scotoma Observed in Chorioretinal Patchy Atrophy of Myopic Macular Degeneration.
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Contrast sensitivity peripheral to an absolute central scotoma in age-related macular degeneration and the influence of a yellow or an orange filter.
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Contrast sensitivity for static and dynamic gratings was determined in 17 patients with age-related macular degeneration (AMD) and an absolute central scotoma. Using electronic and computerized equipment, we established contrast sensitivity peripheral to the scotoma at spatial frequencies of 0.5,
Filling-in phenomenon in patients with age-related macular degeneration: differences regarding uni- or bilaterality of central scotoma.
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OBJECTIVE
The purpose of this study was to explore the presence of the filling-in phenomenon in patients with uni- or bilateral central scotoma (CS) resulting from natural history or laser photocoagulation of choroidal neovascularization in age-related macular degeneration (AMD).
METHODS
Sixteen
Microperimetry biofeedback training in a patient with bilateral myopic macular degeneration with central scotoma.
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Microperimetry-1 (MP-1) evaluation and MP-1 biofeedback training were done in a case of bilateral myopic macular degeneration with a central scotoma. Fixation behavior, location and stability of preferred retinal locus, eye movement speed, and mean sensitivity were assessed. The mean retinal
Optokinetic nystagmus in patients with central scotomas in age related macular degeneration.
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BACKGROUND
Reports on the impact of a loss in the central field of vision on optokinetic nystagmus (OKN) are varied. A study was therefore undertaken to reassess the role of the central retina in the generation of OKN in a large group of patients with age related macular degeneration.
METHODS
Four
Scotoma size reduction as an adaptive strategy in age-related macular degeneration.
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OBJECTIVE
Retinal areas with reduced sensitivity to light stimuli represent the true scotoma size in patients with age-related macular degeneration (AMD), whereas the perceived visual field defect area that covers a specific target of regard may represent an effective size of the same scotoma. This
Scotoma size and reading speed in patients with subfoveal occult choroidal neovascularization in age-related macular degeneration.
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OBJECTIVE
To investigate the correlation between reading speed and scotoma size in patients with subfoveal occult with no classic choroidal neovascularization (CNV) in age-related macular degeneration (AMD) participating at 2 of 28 centers in the Verteporfin in Photodynamic Therapy
Preferred retinal loci and macular scotoma characteristics in patients with age-related macular degeneration.
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Many patients with macular scotomas due to age-related macular degeneration do not perceive black spots in the visual field where the scotomas are located. Rather, they describe objects as "vanishing," "jumping out of nowhere" or "having blurry parts," or a combination of features. In addition, when
Simulated double Bjerrum's scotomas by retinal pigment epithelium and receptor degeneration.
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A seemingly glaucomatous double Bjerrum's nerve fiber bundle defect was mimicked by pigment epithelium and receptor degeneration. The discrepancy between normal appearance of the disc and the abnormal visual field was a clue indicating need for further evaluation for retinal disease unrelated to
Fixation patterns and reading rates in eyes with central scotomas from advanced atrophic age-related macular degeneration and Stargardt disease.
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OBJECTIVE
To study fixation patterns and reading rates in eyes with central scotomas from geographic atrophy (GA) of age-related macular degeneration and to compare fixation patterns with those of patients with Stargardt disease.
METHODS
Scanning laser ophthalmoscope analysis of fixation patterns in
A novel high-resolution kinetic method for visual field mapping of scotoma in age-related macular degeneration.
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OBJECTIVE
To examine a new high-resolution kinetic mapping method for scotoma in age-related macular degeneration.
METHODS
A computer-based program for kinetic visual field mapping was tested in 10 healthy subjects and 14 patients with age-related macular degeneration and fixed preferred retinal
Long-term follow-up of fixation patterns in eyes with central scotomas from geographic atrophy that is associated with age-related macular degeneration.
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OBJECTIVE
To study whether fixation patterns changed over time in patients with central scotomas from geographic atrophy from age-related macular degeneration.
METHODS
Prospective cohort study.
METHODS
setting: Institutional. patient or study population: Prospective natural history study of
A computer and video display based system for training eccentric viewing in macular degeneration with an absolute central scotoma.
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A new approach designed to establish the most suitable area for eccentric viewing and to teach and train patients with severe age-related macular degeneration (AMD) to use the eccentric viewing technique is described. Using a computer and video display based system, as well as software written
Effect of bilateral macular scotomas from age-related macular degeneration on reach-to-grasp hand movement.
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OBJECTIVE
Vision plays a critical role in reaching and grasping objects. Consequently, bilateral macular scotomas from age-related macular degeneration (AMD) may affect reach-to-grasp movements. The purpose of this work was to investigate changes in reach-to-grasp movement dynamics and to relate
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