منابع مشابه
Primary Ocular Movements Revisited
Vision is a very important issue developing artiicial anthropomorphic systems. Starting from traditional knowledge about ocular movements, mainly due to physiological observations , the paper revisits primary ocular processes and proposes some new ideas for oculomo-tor control. It is shown that using space-variant sampling, pursuit, vergence and saccadic process are considerably simpliied. The ...
متن کاملOcular motor abnormalities in achiasmatic mutant Belgian sheepdogs: Unyoked eye movements in a mammal
We studied the eye movements of several members of a family of Belgian sheepdogs that includes achiasmatic mutants. Our aim was to identify the types of nystagmus and other ocular motor abnormalities exhibited by the mutants. We also recorded from several unaffected heterozygous carriers of the genetic mutation and from a normal Irish Setter. Mutant dogs exhibited nystagmus waveforms that were ...
متن کاملB-scan ultrasonography of ocular abnormalities: a review of 182 dogs
Ultrasonography is the only practical method for obtaining images of the posterior segment of the eye when the light-conducting media are opaque. In this study, 182 dogs with ocular abnormalities presented to the Department of Veterinary Surgery and Radiology from December 2008-August 2010 were included. All the animals were subjected to detailed ophthalmic examination and B-scan ultrasonograph...
متن کاملAcrofacial dysostosis of Nager and ocular abnormalities.
Acrofacial dysostosis of Nager is a little known hereditary syndrome in which the findings of mandibulofacial dysostosis are associated with defects of the limbs. The present case showed other abnormalities including the Stilling-Turk-Duane syndrome, conductive deafness and ptosis of the transverse colon.
متن کاملAbnormalities of ocular motility in myotonic dystrophy.
Are the oculomotor disturbances in myotonic dystrophy (MD), i.e. reduced smooth pursuit (SP) gain and reduced saccadic peak velocity (PV), of muscular or central origin? To answer this question the following two approaches were used. (i) The performance of SP was compared with the patient's ability to suppress the vestibulo-ocular reflex (VOR) visually (VOR suppression; VOR-S). In the latter ta...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1909
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(01)37641-9