Results 21 to 30 of about 13,874 (208)

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

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  

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

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

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

Oculomotor tracking behavior with scotoma in normals and patients.

open access: yes, 1993
Oculomotor tracking behavior with scotoma in normals and ...
Peter Eric. Pidcoe (7988258)
core   +6 more sources

Novel scotoma detection method using time required for fixation to the random targets [PDF]

open access: yes, 2021
We developed a novel scotoma detection system using time required for fixation to the random targets, or the” eye-guided scotoma detection method “. In order to verify the” eye-guided scotoma detection method “, we measured 78 eyes of 40 subjects, and ...
Tamura, Hiroshi   +8 more
core   +1 more source

Nanophthalmos and situs inversus totalis

open access: yesIndian Journal of Ophthalmology, 2012
Nanophthalmos is characterized by short axial length, high hypermetropia, thick sclera and a normal-sized crystalline lens. Situs inversus totalis is the mirror image of the normal morphology of the thoracic and abdominal viscera.
Alparslan Sahin   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy