Spontaneous recovery and treatment effects in patients with homonymous visual field defects: a meta-analysis of existing literature in terms of the ICF framework

Haan, Gera de; Heutink, Joost; Melis-Dankers, Bart; Tucha, Oliver; Brouwer, Wiebo

doi:10.1016/j.survophthal.2013.02.006

Cited by 21 publications

(18 citation statements)

References 204 publications

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“…In their comprehensive review of spontaneous recovery and treatment effects following homonymous visual deficits, de Haan et al identified important differences between the outcomes measured by restorative vs. compensatory training (de Haan et al, 2014 ). By definition, restorative training primarily focuses on improving the visual field, reducing the visual deficit, whilst compensatory training teaches the patient to apply scanning strategies in daily life in order to improve independence and mobility.…”

Section: Discussionmentioning

confidence: 99%

Extrastriate visual cortex reorganizes despite sequential bilateral occipital stroke: implications for vision recovery

Brodtmann

Puce

Darby

et al. 2015

Front. Hum. Neurosci.

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The extent of visual cortex reorganization following injury remains controversial. We report serial functional magnetic resonance imaging (fMRI) data from a patient with sequential posterior circulation strokes occurring 3 weeks apart, compared with data from an age-matched healthy control subject. At 8 days following a left occipital stroke, contralesional visual cortical activation was within expected striate and extrastriate sites, comparable to that seen in controls. Despite a further infarct in the right (previously unaffected hemisphere), there was evolution of visual cortical reorganization progressed. In this patient, there was evidence of utilization of peri-infarct sites (right-sided) and recruitment of new activation sites in extrastriate cortices, including in the lateral middle and inferior temporal lobes. The changes over time corresponded topographically with the patient's lesion site and its connections. Reorganization of the surviving visual cortex was demonstrated 8 days after the first stroke. Ongoing reorganization in extant cortex was demonstrated at the 6 month scan. We present a summary of mechanisms of recovery following stroke relevant to the visual system. We conclude that mature primary visual cortex displays considerable plasticity and capacity to reorganize, associated with evolution of visual field deficits. We discuss these findings and their implications for therapy within the context of current concepts in visual compensatory and restorative therapies.

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Section: Discussionmentioning

confidence: 99%

Extrastriate visual cortex reorganizes despite sequential bilateral occipital stroke: implications for vision recovery

Brodtmann

Puce

Darby

et al. 2015

Front. Hum. Neurosci.

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“…Homonymous hemianopia (HH) is inherent in unilateral lesion of either optic tract, or LGN, or optic radiations, or occipital primary visual cortex. HH causes loss of vision in ipsilateral hemi-retinas, thus in contralateral visual field (Grunda et al, 2013 ; de Haan et al, 2014 ; see Figures 5B4–7/8 ). Most common aetiologies for HH are stroke of the posterior cerebral artery (70%), traumatic brain injury (11–14%) and tumors (11%) (Zhang et al, 2006 ).…”

Section: The Blind Brain From Optic Neuritis To Neglectmentioning

confidence: 99%

Educating the blind brain: a panorama of neural bases of vision and of training programs in organic neurovisual deficits

Coubard

Urbanski

Bourlon³

et al. 2014

Front. Integr. Neurosci.

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Vision is a complex function, which is achieved by movements of the eyes to properly foveate targets at any location in 3D space and to continuously refresh neural information in the different visual pathways. The visual system involves five main routes originating in the retinas but varying in their destination within the brain: the occipital cortex, but also the superior colliculus (SC), the pretectum, the supra-chiasmatic nucleus, the nucleus of the optic tract and terminal dorsal, medial and lateral nuclei. Visual pathway architecture obeys systematization in sagittal and transversal planes so that visual information from left/right and upper/lower hemi-retinas, corresponding respectively to right/left and lower/upper visual fields, is processed ipsilaterally and ipsialtitudinally to hemi-retinas in left/right hemispheres and upper/lower fibers. Organic neurovisual deficits may occur at any level of this circuitry from the optic nerve to subcortical and cortical destinations, resulting in low or high-level visual deficits. In this didactic review article, we provide a panorama of the neural bases of eye movements and visual systems, and of related neurovisual deficits. Additionally, we briefly review the different schools of rehabilitation of organic neurovisual deficits, and show that whatever the emphasis is put on action or perception, benefits may be observed at both motor and perceptual levels. Given the extent of its neural bases in the brain, vision in its motor and perceptual aspects is also a useful tool to assess and modulate central nervous system (CNS) in general.

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“…Although there are several treatment options available for the more frequent disorders like hemianopia and neglect (Bowen, Hazelton, Pollock, & Lincoln, 2013;De Haan, Heutink, Melis-Dankers, Tucha, & Brouwer, 2014;Pollock et al, 2011), some visual disorders have received only little attention regarding their rehabilitation. Two disorders for which the latter is true are visual agnosia and Balint's syndrome, which can manifest in patients following ABI as well as in neurodegenerative diseases.…”

Section: Introductionmentioning

confidence: 99%

The neuropsychological rehabilitation of visual agnosia and Balint’s syndrome

Heutink

Indorf

Cordes

2018

Neuropsychological Rehabilitation

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Visual agnosia and Balint's syndrome are complex neurological disorders of the higher visual system that can have a remarkable impact on individuals' lives. Rehabilitation of these individuals is important to enable participation in everyday activities despite the impairment. However, the literature about the rehabilitation of these disorders is virtually silent. Therefore, the aim of this systematic review is to give an overview of available literature describing treatment approaches and their effectiveness with regard to these disorders. The search engines Psychinfo, Amed, and Medline were used, resulting in 22 articles meeting the criteria for inclusion. Only articles describing acquired disorders were considered. These articles revealed that there is some information available on the major subtypes of visual agnosia as well as on Balint's syndrome which practising clinicians can consult for guidance. With regard to the type of rehabilitation, compensatory strategies have proven to be beneficial in most of the cases. Restorative training on the other hand has produced mixed results. Concluding, although still scarce, a scientific foundation about the rehabilitation of visual agnosia and Balint's syndrome is evolving. The available approaches give valuable information that can be built upon in the future.

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Spontaneous recovery and treatment effects in patients with homonymous visual field defects: a meta-analysis of existing literature in terms of the ICF framework

Cited by 21 publications

References 204 publications

Extrastriate visual cortex reorganizes despite sequential bilateral occipital stroke: implications for vision recovery

Extrastriate visual cortex reorganizes despite sequential bilateral occipital stroke: implications for vision recovery

Educating the blind brain: a panorama of neural bases of vision and of training programs in organic neurovisual deficits

The neuropsychological rehabilitation of visual agnosia and Balint’s syndrome

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