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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1992-10-6
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pubmed:abstractText |
To elucidate a motor adaptation phenomenon in the Bielschowsky head-tilt test in cases of superior oblique palsy, a gain of the otolith-ocular reflex was studied. The amplitude of ocular counter-rolling (OCR) of the non-paretic eye was measured with a photographic method, using limbal conjunctival marks as landmarks which were marked with indigo carmine. The average preoperative OCR of the non-paretic eye was 10.49 degrees at 30 degrees of head tilt to both sides, but after corrective surgery in the paretic eye the OCR of the non-paretic eye decreased to 8.43 degrees. To clarify the relation between OCR, duration of palsy and vertical deviation of the Bielschowsky head-tilt test (BHP), which was the difference of vertical deviation measured with the head tilted to the left and right shoulders at an angle of 30 degrees, the BHP/OCR ratio was calculated. We found no relation between BHP and OCR, but the BHP/OCR ratio increased proportionally in cases of long-standing palsy, From these results an increased BHP/OCR ratio could be an adaptive phenomenon caused by secondary innervational changes or muscle contracture to minimizing the contralateral head tilt to maintain binocular single vision.
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pubmed:language |
jpn
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0029-0203
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
96
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1055-60
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pubmed:dateRevised |
2011-7-28
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pubmed:meshHeading |
pubmed-meshheading:1519508-Adaptation, Physiological,
pubmed-meshheading:1519508-Adolescent,
pubmed-meshheading:1519508-Adult,
pubmed-meshheading:1519508-Aged,
pubmed-meshheading:1519508-Child,
pubmed-meshheading:1519508-Eye Movements,
pubmed-meshheading:1519508-Head,
pubmed-meshheading:1519508-Humans,
pubmed-meshheading:1519508-Middle Aged,
pubmed-meshheading:1519508-Movement,
pubmed-meshheading:1519508-Ophthalmoplegia
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pubmed:year |
1992
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pubmed:articleTitle |
[Motor adaptation in the Bielschowsky head-tilt test in cases of superior oblique palsy].
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pubmed:affiliation |
Department of Ophthalmology, Okayama University Medical School, Japan.
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pubmed:publicationType |
Journal Article,
English Abstract
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