Rehabilitation of visual disorders
While there is a long history of rehabilitation for motor deficits following cerebral lesions, less is known about our ability to improve visual deficits. Vision therapy, prisms, occluders, and filters have been advocated for patients with mild traumatic brain injury, on the premise that some of the...
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Published in | Handbook of Clinical Neurology Vol. 178; pp. 361 - 386 |
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Main Authors | , |
Format | Book Chapter Journal Article |
Language | English |
Published |
The Netherlands
Elsevier Health Sciences
2021
Elsevier |
Subjects | |
Online Access | Get full text |
ISBN | 9780128213773 0128213779 |
ISSN | 0072-9752 |
DOI | 10.1016/B978-0-12-821377-3.00015-5 |
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Abstract | While there is a long history of rehabilitation for motor deficits following cerebral lesions, less is known about our ability to improve visual deficits. Vision therapy, prisms, occluders, and filters have been advocated for patients with mild traumatic brain injury, on the premise that some of their symptoms may reflect abnormal visual or ocular motor function, but the evidence for their efficacy is modest. For hemianopia, attempts to restore vision have had unimpressive results, though it appears possible to generate blindsight through training. Strategic approaches that train more efficient use of visual search in hemianopia have shown consistent benefit in visual function, while prism aids may help some patients. There are many varieties of alexia. Strategic adaptation of saccades can improve hemianopic alexia, but there has been less work and mixed results for pure alexia, neglect dyslexia, attentional dyslexia, and the central dyslexias. A number of approaches have been tried in prosopagnosia, with recent studies of small groups suggesting that face perception of prosopagnosic subjects can be enhanced through perceptual learning. |
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AbstractList | While there is a long history of rehabilitation for motor deficits following cerebral lesions, less is known about our ability to improve visual deficits. Vision therapy, prisms, occluders, and filters have been advocated for patients with mild traumatic brain injury, on the premise that some of their symptoms may reflect abnormal visual or ocular motor function, but the evidence for their efficacy is modest. For hemianopia, attempts to restore vision have had unimpressive results, though it appears possible to generate blindsight through training. Strategic approaches that train more efficient use of visual search in hemianopia have shown consistent benefit in visual function, while prism aids may help some patients. There are many varieties of alexia. Strategic adaptation of saccades can improve hemianopic alexia, but there has been less work and mixed results for pure alexia, neglect dyslexia, attentional dyslexia, and the central dyslexias. A number of approaches have been tried in prosopagnosia, with recent studies of small groups suggesting that face perception of prosopagnosic subjects can be enhanced through perceptual learning. While there is a long history of rehabilitation for motor deficits following cerebral lesions, less is known about our ability to improve visual deficits. Vision therapy, prisms, occluders, and filters have been advocated for patients with mild traumatic brain injury, on the premise that some of their symptoms may reflect abnormal visual or ocular motor function, but the evidence for their efficacy is modest. For hemianopia, attempts to restore vision have had unimpressive results, though it appears possible to generate blindsight through training. Strategic approaches that train more efficient use of visual search in hemianopia have shown consistent benefit in visual function, while prism aids may help some patients. There are many varieties of alexia. Strategic adaptation of saccades can improve hemianopic alexia, but there has been less work and mixed results for pure alexia, neglect dyslexia, attentional dyslexia, and the central dyslexias. A number of approaches have been tried in prosopagnosia, with recent studies of small groups suggesting that face perception of prosopagnosic subjects can be enhanced through perceptual learning.While there is a long history of rehabilitation for motor deficits following cerebral lesions, less is known about our ability to improve visual deficits. Vision therapy, prisms, occluders, and filters have been advocated for patients with mild traumatic brain injury, on the premise that some of their symptoms may reflect abnormal visual or ocular motor function, but the evidence for their efficacy is modest. For hemianopia, attempts to restore vision have had unimpressive results, though it appears possible to generate blindsight through training. Strategic approaches that train more efficient use of visual search in hemianopia have shown consistent benefit in visual function, while prism aids may help some patients. There are many varieties of alexia. Strategic adaptation of saccades can improve hemianopic alexia, but there has been less work and mixed results for pure alexia, neglect dyslexia, attentional dyslexia, and the central dyslexias. A number of approaches have been tried in prosopagnosia, with recent studies of small groups suggesting that face perception of prosopagnosic subjects can be enhanced through perceptual learning. |
Author | Leff, Alexander Barton, Jason J.S. |
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Keywords | Hemianopia Prisms Alexia Mild traumatic brain injury Prosopagnosia Ocular motor training |
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References | Bohnen, Twijnstra, Wijnen (bb1005) 1991; 238 Wright, Tierney, McDevitt (bb1020) 2017; 27 Naatanen (bb1015) 1975; 2 Di Russo, Spinelli, Morrone (bb1010) 2001; 41 |
References_xml | – volume: 2 start-page: 237 year: 1975 end-page: 307 ident: bb1015 article-title: Selective attention and evoked potentials in humans—a critical review publication-title: Biol Psychol – volume: 27 start-page: 27 year: 2017 end-page: 37 ident: bb1020 article-title: Visual-vestibular processing deficits in mild traumatic brain injury publication-title: J Vestib Res – volume: 238 start-page: 443 year: 1991 end-page: 446 ident: bb1005 article-title: Tolerance for light and sound of patients with persistent post-concussional symptoms 6 months after mild head injury publication-title: J Neurol – volume: 41 start-page: 2435 year: 2001 end-page: 2447 ident: bb1010 article-title: Automatic gain control contrast mechanisms are modulated by attention in humans: evidence from visual evoked potentials publication-title: Vision Res |
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SubjectTerms | Alexia Hemianopia Mild traumatic brain injury Ocular motor training Prisms Prosopagnosia |
Title | Rehabilitation of visual disorders |
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