نتایج جستجو برای: vep

تعداد نتایج: 1221  

Journal: :Investigative ophthalmology & visual science 2013
Lucia Ziccardi Federico Sadun Anna Maria De Negri Piero Barboni Giacomo Savini Enrico Borrelli Chiara La Morgia Valerio Carelli Vincenzo Parisi

PURPOSE We assessed retinal ganglion cell (RGC) function, and established a correlation between the neural conduction along the visual pathways and the retinal involvement in Leber's hereditary optic neuropathy (LHON). METHODS A total of 39 individuals carrying a LHON mutation (mean age, 33.35 ± 8.4 years), LHON-unaffected (LU, 22 eyes) or LHON-affected (LA, 17 eyes), underwent visual acuity ...

2014
Ema Kantorová Peter Žiak Egon Kurča Mária Koyšová Mária Hladká Kamil Zeleňák Jozef Michalik

BACKGROUND The aim of our study was to assess the role of laser polarimetry and visual evoked potentials (VEP) as potential biomarkers of disease progression in multiple sclerosis (MS). PARTICIPANTS A total of 41 patients with MS (82 eyes) and 22 age-related healthy volunteers (44 eyes) completed the study. MS patients were divided into two groups, one (ON) with a history of optic neuritis (1...

2015
Roy Schwartz Adiel Barak Hadas Newman

PURPOSE To describe a visually evoked potential (VEP) examination performed on a patient with a keratoprosthesis. METHODS We report the case of a 60-year-old patient with a Fyodorov-Zuev keratoprosthesis in the right eye complained of gradual visual deterioration in that eye. His past medical history consisted of failed corneal graft procedures due to corneal dystrophy and an Ahmed valve impl...

2013
Fatih Cakir Gundogan Kadir Colakoglu Omer Faruk Sahin

We congratulate Dr. Azarmina and colleagues on their study investigating the latency of visual evoked potentials (VEPs) among healthy females during and after menstruation.1 The authors found significantly increased latencies in pattern and flash VEP in their subjects. Their findings are particularly remarkable since the mean latency of the P100 wave was increased by approximately 20 ms (mean i...

2015
Ignacio Méndez-Balbuena Nayeli Huidobro Mayte Silva Amira Flores Luis Quintanar Oscar Arias-Carrión Rumyana Kristeva Elias Manjarrez

40 The present investigation documents the electrophysiological occurrence of 41 multisensory stochastic resonance in the human visual pathway elicited by tactile 42 noise. We define multisensory stochastic resonance of brain evoked potentials as 43 the phenomenon in which an intermediate level of input noise of one sensory 44 modality enhances the brain evoked response of another sensory modal...

Journal: :Constructive Approximation 2022

We study the equilibrium measure on two-dimensional sphere in presence of an external field generated by $$r+1$$ equal point charges that are symmetrically located around north pole. The support is known as droplet. droplet has a motherbody which we characterize means vector problem (VEP) for r measures complex plane. model undergoes two transitions reflected first component minimizer VEP, name...

Journal: :Translational vision science & technology 2015
Kalina Makowiecki Andrew Garrett Vince Clark Stuart L Graham Jennifer Rodger

PURPOSE Visual evoked potentials (VEPs) are widely used to objectively assess visual system function in animal models of ophthalmological diseases. Although use of chronically implanted electrodes is common in longitudinal VEP studies using rodent models, reliability of recordings over time has not been assessed. We compared VEPs 1 and 7 days after electrode implantation in the adult mouse. We ...

2017
Arjenne H. M. Gussenhoven Johannes R. Anema Birgit I. Witte S. Theo Goverts Sophia E. Kramer

The aim of this study was to evaluate the effectiveness of a vocational enablement protocol (VEP) on need for recovery (NFR) after work as compared with usual care for employees with hearing difficulties. In a randomized controlled trial design, 136 employees with hearing impairment were randomly assigned to either the VEP or the control group. VEP is a multidisciplinary program integrating aud...

2017
Anna Leśniak Izabela Herman-Sucharska Małgorzata Klimek Paulina Karcz Anna Kubatko-Zielińska Magdalena Nitecka Grażyna Dutkowska Bożena Romanowska-Dixon Przemko Kwinta

PURPOSE The main aim of the study was to evaluate which factors affect the long-time visual function in preterm children, whether it is prematurity or retinopathy of prematurity or perhaps disturbances in the visual pathway. MATERIALS AND METHODS Fifty-eight children with mean birth weight 1016 g (range 520-1500 g) were evaluated at mean age 48 months (range 42-54 months). All children underw...

2013
AM Ghita D Parvu R Sava L Georgescu L Zagrean

UNLABELLED The visually evoked potentials are electrical signals generated by the occipital cortex due to electrical stimulus. The clinical importance of VEP is to diagnose the functional changes of the optic nerve in different diseases such as diabetic mellitus. Our study sought latency of VEP changes depending on glycemic value and duration of diabetes in Wistar rats. METHODS this study eva...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید