Results 11 to 20 of about 447,001 (304)

Ocular fixation instabilities in motor neurone disease [PDF]

Journal of Neurology, 2009
Eye movements are classically felt to be spared in motor neurone disease (MND). Although a range of ocular motor disorders have been reported, no consistent pattern has been established. Disturbances of ocular fixation have been noted in MND; however, fixation has not yet been formally examined. With the recent characterization of ocular fixation using
Colette, Donaghy, Ralph, Pinnock, Sharon, Abrahams, Chris, Cardwell, Orla, Hardiman, Victor, Patterson, R Canice, McGivern, J Mark, Gibson   +7 more
openaire   +4 more sources

Localization of Static Positional Nystagmus With the Ocular Fixation Test

The Laryngoscope, 1999
AbstractObjective: Characteristics of static positional nystagmus (SPN) (i.e., persistency, direction fixed, direction changing) are observed in both peripheral and central disturbances and possess no localizing value for vestibular lesions. Our objective was to investigate whether the ocular fixation test as applied to SPN could assist in localizing ...
Maire R, Duvoisin B
openaire   +4 more sources

Unilateral pallidotomy for Parkinson’s disease disrupts ocular fixation

Journal of Clinical Neuroscience, 2003
Although some motor functions of the basal ganglia have been well studied, the oculomotor functions are not well established. We studied eye movements in patients with Parkinson's disease (PD) undergoing pallidotomy to assess the role of the globus pallidus interna (GPi) in oculomotor control.
O'Sullivan, JD, Maruff, P, Tyler, P, Peppard, RF, McNeill, P, Currie, J   +5 more
openaire   +6 more sources

Sutureless fixation of amniotic membrane for therapy of ocular surface disorders.

PLoS ONE, 2015
Amniotic membrane is applied to the diseased ocular surface to stimulate wound healing and tissue repair, because it releases supportive growth factors and cytokines.
Ilya Kotomin, Monika Valtink, Kai Hofmann, Annika Frenzel, Henning Morawietz, Carsten Werner, Richard H W Funk, Katrin Engelmann   +7 more
doaj   +5 more sources

Ocular fixation index and mathematical models.

Acta oto-rhino-laryngologica Belgica, 1998
Ocular fixation test and ocular fixation index (OFI) never have been interpreted in terms of mathematical models, despite their widespread diffusion. However, ocular fixation is a typical case of visual-vestibular interaction, and mathematical models have proven very helpful in interpreting some mechanisms of this interaction, e.g.
BUIZZA, ANGELO
openaire   +2 more sources

Exploring Changes in Ocular Aberrations for Different Fixation and Accommodation Stimuli

Photonics
Background: Given the lack of standardization in stimulus types for assessing accommodation, we aimed to evaluate accommodative response (AR) and Zernike coefficients using four different stimuli.
María Mechó-García, Rute J. Macedo-de-Araújo, Paulo Fernandes, José Manuel González-Méijome   +3 more
doaj   +3 more sources

Ocular contrapulsion followed by ipsipulsion in Wallenberg syndrome: The first case report in literature

Radiology Case Reports, 2022
Wallenberg syndrome is also called lateral medullary syndrome, a neurological disorder resulting from occlusion of the vertebral artery or the posterior inferior cerebellar artery.
Euldes Mendes Junior, Fernando Magri, Ana Beatriz Ramalho Leite Silva, Guilherme Pinheiro Diógenes, Marina Feitosa de Castro Aguiar, Lucas Bessa, Luciano Barroso de Albuquerque Filho, Sara Diógenes Peixoto de Medeiros, Luiz Aldir da Silva, Tiago Antoniol, Leandro Freitas Oliveira, Júlio César Claudino dos Santos   +11 more
doaj   +1 more source

Investigating eye movement acquisition and analysis technologies as a causal factor in differential prevalence of crossed and uncrossed fixation disparity during reading and dot scanning [PDF]

, 2013
Previous studies examining binocular coordination during reading have reported conflicting results in terms of the nature of disparity (e.g. Kliegl, Nuthmann, & Engbert (Journal of Experimental Psychology General 135:12-35, 2006); Liversedge, White ...
Blythe, Hazel I., Drieghe, D., Benson, Valerie, Liversedge, Simon P., Kirkby, Julie A., Liversedge, Simon Paul, Benson, V., Drieghe, Denis, Liversedge, S. P., Blythe, H. I.   +9 more
core   +1 more source

Prevalence of Heterophoria in Tibetan Grade-One Students: The Lhasa Childhood Eye Study

Journal of Ophthalmology, 2020
Introduction. The study aims to explore the prevalence of heterophoria and associate factors in Tibetan grade-one students. Methods. The Lhasa Childhood Eye Study (LCES) is a school-based cohort study.
Han Su, Jing Fu, Weiwei Chen, Zhaojun Meng, Lei Li, Wei Dai, Yao Yao   +6 more
doaj   +1 more source

Epidemiological study of ocular trauma in an urban slum population in Delhi, India. [PDF]

, 2008
PURPOSE: To study the epidemiology and clinical profile of victims of ocular trauma in an urban slum population. MATERIALS AND METHODS: This cross-sectional study, conducted on 500 families each in three randomly selected urban slums in Delhi, collected ...
Vats, S, Gupta, SK, Vashist, P, Chandra, M, Gogoi, M, Murthy, GVS   +5 more
core   +1 more source