Paradoxical robust visual evoked potentials in young patients with cortical blindness
The objective of this study was to review retrospectively cases of clinically blind children in whom robust pattern visual evoked potentials (VEPs) were recorded. VEP records from a 10-year period (1990–2000) were reviewed. We searched for charts of children who were clinically cortically blind, but...
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| Veröffentlicht in: | Documenta ophthalmologica 2009-10, Vol.119 (2), p.101-107 |
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| container_title | Documenta ophthalmologica |
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| creator | Wygnanski-Jaffe, Tamara Panton, Carole M. Buncic, J. Raymond Westall, Carol A. |
| description | The objective of this study was to review retrospectively cases of clinically blind children in whom robust pattern visual evoked potentials (VEPs) were recorded. VEP records from a 10-year period (1990–2000) were reviewed. We searched for charts of children who were clinically cortically blind, but in whom assessment of visual acuity, using visual evoked potentials (VEPs), was normal or close to normal. The majority (77.5%) of VEP and behavioral acuity measures were concordant (subset analysis). Of the 1,113 VEP records, 9 cases ( |
| doi_str_mv | 10.1007/s10633-009-9176-7 |
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VEP acuity cannot be correlated unequivocally with visually guided behaviour. In specific cases, particularly cases with developmental delay and neuroradiographic abnormalities, a child who is behaviorally blind with no clinical evidence of vision may show robust VEPs even to small patterns. This finding might be consistent with a defect of the visual association cortex.</description><identifier>ISSN: 0012-4486</identifier><identifier>EISSN: 1573-2622</identifier><identifier>DOI: 10.1007/s10633-009-9176-7</identifier><identifier>PMID: 19548015</identifier><identifier>CODEN: DOOPAA</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Biological and medical sciences ; Blindness, Cortical - physiopathology ; Child, Preschool ; Developmental Disabilities ; Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. 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Raymond</creatorcontrib><creatorcontrib>Westall, Carol A.</creatorcontrib><title>Paradoxical robust visual evoked potentials in young patients with cortical blindness</title><title>Documenta ophthalmologica</title><addtitle>Doc Ophthalmol</addtitle><addtitle>Doc Ophthalmol</addtitle><description>The objective of this study was to review retrospectively cases of clinically blind children in whom robust pattern visual evoked potentials (VEPs) were recorded. VEP records from a 10-year period (1990–2000) were reviewed. We searched for charts of children who were clinically cortically blind, but in whom assessment of visual acuity, using visual evoked potentials (VEPs), was normal or close to normal. The majority (77.5%) of VEP and behavioral acuity measures were concordant (subset analysis). Of the 1,113 VEP records, 9 cases (<1% of records reviewed) had clinically compromised vision with fair to good levels of visual function using VEPs. The commonality among the cases was the presence of suspected cortical visual impairment with seizures and developmental delay. VEP acuity cannot be correlated unequivocally with visually guided behaviour. In specific cases, particularly cases with developmental delay and neuroradiographic abnormalities, a child who is behaviorally blind with no clinical evidence of vision may show robust VEPs even to small patterns. This finding might be consistent with a defect of the visual association cortex.</description><subject>Biological and medical sciences</subject><subject>Blindness, Cortical - physiopathology</subject><subject>Child, Preschool</subject><subject>Developmental Disabilities</subject><subject>Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes</subject><subject>Evoked Potentials, Visual - physiology</subject><subject>Female</subject><subject>Humans</subject><subject>Infant</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Nervous system (semeiology, syndromes)</subject><subject>Neurology</subject><subject>Ophthalmology</subject><subject>Original Research Article</subject><subject>Retrospective Studies</subject><subject>Visual Acuity - physiology</subject><issn>0012-4486</issn><issn>1573-2622</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><recordid>eNqFkU9rFTEUxYMo9tn6AdyUQai7sblJJn-WpbQqFHRh1yGTydTUeclr7ky13968vocFobgKSX7n5OYcQt4B_QiUqlMEKjlvKTWtASVb9YKsoFO8ZZKxl2RFKbBWCC0PyBvEW1pBBfo1OQDTCU2hW5Hrb664If-O3k1Nyf2Cc3Mfcam7cJ9_hqHZ5DmkOboJm5iah7ykm2bj5lgPsfkV5x-Nz2V-1PdTTEMKiEfk1VgF4e1-PSTXlxffzz-3V18_fTk_u2q94HRuXWCD6IJx0gvj6dDxkSsIHTUj9IZDJ3qlwHVG9KMWeuzlyLVnoAGclIPhh-TDzndT8t0ScLbriD5Mk0shL2ilkoqKmtH_QAYgOVWqgu__AW_zUlL9RGWEMIpqqBDsIF8yYgmj3ZS4duXBArXbZuyuGVsDt9tm7Nb4eG-89OswPCn2VVTgZA84rGGOxSUf8S_HwBilHydkOw7rVboJ5WnC51__A9a5pa4</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>Wygnanski-Jaffe, Tamara</creator><creator>Panton, Carole M.</creator><creator>Buncic, J. 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Raymond ; Westall, Carol A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c430t-ae2d45e9a6c49c0d53f371e509f1b93154b771a594bf848fb6f38c21811a66d93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Biological and medical sciences</topic><topic>Blindness, Cortical - physiopathology</topic><topic>Child, Preschool</topic><topic>Developmental Disabilities</topic><topic>Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes</topic><topic>Evoked Potentials, Visual - physiology</topic><topic>Female</topic><topic>Humans</topic><topic>Infant</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>Nervous system (semeiology, syndromes)</topic><topic>Neurology</topic><topic>Ophthalmology</topic><topic>Original Research Article</topic><topic>Retrospective Studies</topic><topic>Visual Acuity - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wygnanski-Jaffe, Tamara</creatorcontrib><creatorcontrib>Panton, Carole M.</creatorcontrib><creatorcontrib>Buncic, J. 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Raymond</au><au>Westall, Carol A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Paradoxical robust visual evoked potentials in young patients with cortical blindness</atitle><jtitle>Documenta ophthalmologica</jtitle><stitle>Doc Ophthalmol</stitle><addtitle>Doc Ophthalmol</addtitle><date>2009-10-01</date><risdate>2009</risdate><volume>119</volume><issue>2</issue><spage>101</spage><epage>107</epage><pages>101-107</pages><issn>0012-4486</issn><eissn>1573-2622</eissn><coden>DOOPAA</coden><abstract>The objective of this study was to review retrospectively cases of clinically blind children in whom robust pattern visual evoked potentials (VEPs) were recorded. VEP records from a 10-year period (1990–2000) were reviewed. We searched for charts of children who were clinically cortically blind, but in whom assessment of visual acuity, using visual evoked potentials (VEPs), was normal or close to normal. The majority (77.5%) of VEP and behavioral acuity measures were concordant (subset analysis). Of the 1,113 VEP records, 9 cases (<1% of records reviewed) had clinically compromised vision with fair to good levels of visual function using VEPs. The commonality among the cases was the presence of suspected cortical visual impairment with seizures and developmental delay. VEP acuity cannot be correlated unequivocally with visually guided behaviour. In specific cases, particularly cases with developmental delay and neuroradiographic abnormalities, a child who is behaviorally blind with no clinical evidence of vision may show robust VEPs even to small patterns. This finding might be consistent with a defect of the visual association cortex.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>19548015</pmid><doi>10.1007/s10633-009-9176-7</doi><tpages>7</tpages></addata></record> |
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| subjects | Biological and medical sciences Blindness, Cortical - physiopathology Child, Preschool Developmental Disabilities Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes Evoked Potentials, Visual - physiology Female Humans Infant Male Medical sciences Medicine Medicine & Public Health Nervous system (semeiology, syndromes) Neurology Ophthalmology Original Research Article Retrospective Studies Visual Acuity - physiology |
| title | Paradoxical robust visual evoked potentials in young patients with cortical blindness |
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