Results 131 to 140 of about 2,687 (164)

Multifocal Visual Evoked Potentials and Multifocal Electroretinograms in Papillorenal Syndrome

Archives of Ophthalmology, 2002
A17-YEAR-OLD patient who had received a renal transplant was evaluated for possible glaucoma. Visual acuity was 20/20 at distance with 6/6 AO/HRR color plates correctly identified in each eye. The Humphrey 24-2 visual fields displayed binasal field loss (Figure 1). There was no relative afferent pupillary defect.
Candice S, Chen, Jeffrey G, Odel, Julie S, Miller, Donald C, Hood   +3 more
openaire   +2 more sources

Multifocal Visual Evoked Potentials in the Anesthetized Non-Human Primate

Current Eye Research, 2006
To evaluate monkey multifocal visual evoked cortical potentials (mfVEPs) recorded from central and peripheral fields for reliability and isolation from electroretinographic (ERG) activity.The mfVEP stimulus consisted of a 7-element hexagonal array that subtended 80 degrees of the central visual field.
Mark J Lucarelli, Paul L Kaufman
exaly   +3 more sources

Repeatability of the Multifocal Visual Evoked Potentials in a Clinical Glaucoma Setting

Canadian Journal of Ophthalmology, 2008
To determine the reproducibility of the multifocal visual evoked potentials (mfVEP) test results in a clinical glaucoma setting, and the factors that affect variability.This was an observational case series study. The monocular mfVEP test, having a 58-sector, pattern-reversal dartboard array, was performed twice within 4 weeks in both eyes of 29 adult ...
Robert L Stamper, Omar S Punjabi
exaly   +3 more sources

Effect of fixation tasks on multifocal visual evoked potentials

Clinical & Experimental Ophthalmology, 2005
AbstractPurpose:  This study investigated the effects of cognitive influence on the multifocal visual evoked potential (mVEP) at different levels of eccentricity. Three different foveal fixation conditions were utilized involving varying levels of task complexity.
Alessandra, Martins, Alexander, Klistorner, Stuart, Graham, Frank, Billson   +3 more
openaire   +2 more sources

Functional Bitemporal Quadrantopia and the Multifocal Visual Evoked Potential

Journal of Neuro-Ophthalmology, 2000
Cases of functional bitemporal hemianopia rarely have been reported. The authors describe the case of a patient with dense bilateral inferotemporal quadrantic field defects on a functional basis that was confirmed by multifocal visual evoked potential. The normality of the multifocal visual evoked potential provides evidence of the functional basis of ...
D L, Miele, J G, Odel, M M, Behrens, X, Zhang, D C, Hood   +4 more
openaire   +2 more sources

Multifocal Visual Evoked Potential Is Dependent on Electrode Position

Japanese Journal of Ophthalmology, 2002
To investigate whether the multifocal visual evoked potential (mVEP) is dependent on the electrode position, and to confirm the reproducibility of the mVEP.The mVEPs were recorded using the Veris III system with two different bipolar electrode settings.
Yasuhiro, Kikuchi, Masaru, Yoshii, Kenji, Yanashima, Toshio, Enoki, Tetsuyoshi, Ide, Fumito, Sakemi, Shigekuni, Okisaka   +6 more
openaire   +2 more sources

Multifocal Visual Evoked Potentials for Early Glaucoma Detection

Ophthalmic Surgery, Lasers and Imaging Retina, 2012
BACKGROUND AND OBJECTIVE: To compare multifocal visual evoked potentials (mfVEP) with other detection methods in early open-angle glaucoma. PATIENTS AND METHODS: Ten patients with suspected glaucoma and 5 with early open-angle glaucoma underwent mfVEP, standard ...
Jennifer S, Weizer, David C, Musch, Leslie M, Niziol, Naheed W, Khan   +3 more
openaire   +2 more sources

Effect of Pupil Size on Multifocal Pattern Visual Evoked Potentials

Clinical and Experimental Ophthalmology, 2003
AbstractThe purpose of this study was to investigate the influence of pupil diameter on the amplitude and latency of multifocal visual evoked potentials (mfVEP). The multifocal objective perimeter (Accumap; Objectivision) was used to stimulate the visual field at 56 sites extending to 32° using a pseudo­random pattern stimulus.
Stuart L Graham, Francis A Billson
exaly   +3 more sources

A first comparison of the human multifocal visual evoked magnetic field and visual evoked potential

Neuroscience Letters, 2001
Our objectives were to determine the feasibility of recording reliable multifocal visual evoked magnetic fields (mfVEFs), to investigate the maximum stimulus eccentricity for which the mfVEF responses can be obtained, and to study how this changes with checksize (spatial frequency tuning).
L, Wang, C, Barber, R, Kakigi, Y, Kaneoke, T, Okusa, Y, Wen   +5 more
openaire   +2 more sources

Reproducibility of multifocal visual evoked potential and traditional visual evoked potential in normal and multiple sclerosis eyes

Documenta Ophthalmologica, 2014
To establish reproducibility of multifocal visual evoked potential (mfVEP) and traditional pattern-reversal VEP (tVEP) in normals and relapsing-remitting multiple sclerosis (RRMS).mfVEP (60-sector dartboard) was recorded twice within a month in 40 normals and 40 RRMS patients [25 eyes with last optic neuritis (ON) ≥6 months, 34 non-ON]. mfVEP amplitude
Divya, Narayanan, Han, Cheng, Rosa A, Tang, Laura J, Frishman   +3 more
openaire   +2 more sources