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单词 sursumduction
释义

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sursumduction
sursumduction n.
Brit. /ˌsəːsəmˈdʌkʃn/
,
U.S. /ˌsərsəmˈdəkʃ(ə)n/
[ < French sursumduction (G. T. Stevens 1886, in Arch. d'Ophtalm. VI. 545): see duction n.] vertical movement upwards of one eye alone; the degree to which this action occurs.
ΘΚΠ
the world > health and disease > ill health > a disease > disorders of eye > [noun] > disordered movement
nystagmus1772
wandering1869
conjugate deviation1882
phoria1891
sursumduction1893
sursumvergence1897
oculogyric crisis1927
1893 G. E. de Schweinitz Dis. Eye ii. 76 Sursumduction, or the power of uniting the image of the candle flame, seen through a prism placed with its base downward before one eye, with the image of the same object as seen by the other eye, is ascertained by beginning the trial with a weak prism..and gradually increasing its strength.
1949 S. Duke-Elder Text-bk. Ophthalmol. IV. xlv. 3814 Depending on whether the [eye] movement is in, out, up or down, the terms adduction, abduction, supraduction (sursumduction) and infraduction (deorsumduction) are employed.
1975 M. M. Parks Ocular Motility & Strabismus xviii. 149/1 Dissociated double hyper~deviation is synonymous with alternating sursumduction which describes the upturning movement of each eye as the cover-uncover test is performed.
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