Results 11 to 20 of about 11,276 (166)

An audio-visual motor training improves audio spatial localization skills in individuals with scotomas due to retinal degenerative diseases

open access: yesActa Psychologica, 2021
Several studies have shown that impairments in a sensory modality can induce perceptual deficits in tasks involving the remaining senses. For example, people with retinal degenerative diseases like Macular Degeneration (MD) and with central scotoma show ...
Hafsah Ahmad   +6 more
doaj   +1 more source

Traumatic endophthalmitis presenting as isolated retinal vasculitis and white-centered hemorrhages: Case report and review of literature

open access: yesIndian Journal of Ophthalmology, 2012
The article reports a case and review of the literature of endophthalmitis presenting as isolated retinal vasculitis. A 26-year-old male was observed to have white-centered retinal hemorrhages and retinal vasculitis following an occult scleral ...
Nidhi Relhan   +4 more
doaj   +1 more source

Evaluating the Performance of qVFM in Mapping the Visual Field of Simulated Observers With Eye Diseases

open access: yesFrontiers in Neuroscience, 2021
PurposeRecently, we developed a novel active learning framework, qVFM, to map visual functions in the visual field. The method has been implemented and validated in measuring light sensitivity and contrast sensitivity visual field maps (VFMs) of normal ...
Pengjing Xu   +7 more
doaj   +1 more source

Scotoma Visibility and Reading Rate with Bilateral Central Scotomas [PDF]

open access: yesOptometry and Vision Science, 2017
ABSTRACT Purpose In this experiment, we tested whether perceptually delineating the scotoma location and border with a gaze contingent polygon overlay improves reading speed and reading eye movements in patients with bilateral central scotomas.
Joshua D, Pratt   +2 more
openaire   +2 more sources

Mapping Visual Field Defects With fMRI – Impact of Approach and Experimental Conditions

open access: yesFrontiers in Neuroscience, 2021
Current initiatives to restore vision emphasize the need for objective assessments of visual field (VF) defects as pursued with functional magnetic resonance imaging (fMRI) approaches.
Gokulraj T. Prabhakaran   +5 more
doaj   +1 more source

Desferrioxamine-related ocular toxicity: A case report

open access: yesIndian Journal of Ophthalmology, 2012
A 29-year-old lady receiving repeated blood transfusions for β thalassemia since childhood, presented with rapidly deteriorating symptoms of night blindness and peripheral visual field loss.
Sumu Simon   +4 more
doaj   +1 more source

Microsaccade generation requires a foveal anchor

open access: yesJournal of Eye Movement Research, 2020
Visual scene characteristics have the ability to affect various aspects of saccade and microsaccade dynamics. For example, blank visual scenes are known to elicit diminished saccade and microsaccade production, compared to natural scenes.
Jorge Otero-Millan   +4 more
doaj   +1 more source

Bilateral acute macular neuroretinopathy in a postpartum, otherwise healthy female: A case report

open access: yesIndian Journal of Ophthalmology, 2012
Acute macular neuroretinopathy (AMN) is a rare, macular disorder which typically affects young women who present with paracentral scotoma in one or both eyes corresponding to red, wedge-shaped parafoveal lesions.
Prabhat Ranjan, Sanjiv Hansraj
doaj   +1 more source

Effects of Stimulus Luminance, Stimulus Color and Intra-Stimulus Color Contrast on Visual Field Mapping in Neurologically Impaired Adults Using Flicker Pupil Perimetry

open access: yesEye and Brain, 2023
Brendan L Portengen,1,2 Giorgio L Porro,1,* Douwe Bergsma,3 Evert J Veldman,4 Saskia M Imhof,1 Marnix Naber2,* 1Department of Ophthalmology, University Medical Center Utrecht, Utrecht, the Netherlands; 2Experimental Psychology, Helmholtz ...
Portengen BL   +5 more
doaj  

Visual field defects of optic neuritis in neuromyelitis optica compared with multiple sclerosis

open access: yesBMC Neurology, 2010
Background Neuromyelitis optica (NMO) is an inflammatory demyelinating disease that predominantly affects the optic nerves and the spinal cord, and is possibly mediated by an immune mechanism distinct from that of multiple sclerosis (MS). Central scotoma
Sugasawa Jun   +6 more
doaj   +1 more source

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