Congenital absence of optic chiasm: demonstration of an uncrossed visual pathway using monocular flash visual evoked potentials

2006 ◽  
Vol 113 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Malcolm C. Brown ◽  
Caroline L. Southern ◽  
Arangasamy Anbarasu ◽  
Stephen B. Kaye ◽  
Anthony C. Fisher ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Visual Pathway ◽  
Optic Chiasm ◽  
Congenital Absence ◽  
Flash Visual Evoked Potentials ◽  
Visual Evoked

scholarly journals Optic Nerve Monitoring

2013 ◽  
Vol 6 (2) ◽  
pp. 75-85 ◽  
Author(s):  
Paul Schumann ◽  
Horst Kokemüller ◽  
Frank Tavassol ◽  
Daniel Lindhorst ◽  
Juliana Lemound ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Diagnostic Procedures ◽  
Visual Pathway ◽  
Primary Diagnosis ◽  
Craniomaxillofacial Surgery ◽  
Flash Visual Evoked Potentials ◽  
Examination Techniques ◽  
Visual Evoked

Orbital and anterior skull base surgery is generally performed close to the prechiasmatic visual pathway, and clear strategies for detecting and handling visual pathway damage are essential. To overcome the common problem of a missed clinical examination because of an uncooperative or unresponsive patient, flash visual evoked potentials and electroretinograms should be used. These electrophysiologic examination techniques can provide evidence of intact, pathologic, or absent conductivity of the visual pathway when clinical assessment is not feasible. Visual evoked potentials and electroretinograms are thus essential diagnostic procedures not only for primary diagnosis but also for intraoperative evaluation. A decision for or against treatment of a visual pathway injury has to be made as fast as possible due to the enormous importance of the time elapsed with such injuries; this can be achieved additionally using multislice spiral computed tomography. The first-line conservative treatment of choice for such injuries is megadose methylprednisolone therapy. Surgery is used to decompress the orbital compartment by exposure of the intracanalicular part of the optic nerve in the case of optic canal compression. Modern craniomaxillofacial surgery requires detailed consideration of the diagnosis and treatment of traumatic visual pathway damage with the ultimate goal of preserving visual acuity.

scholarly journals Topographic Analysis of Flash Visual Evoked Potentials in Dogs

2005 ◽  
Vol 67 (9) ◽  
pp. 869-875 ◽  
Author(s):  
Tomofumi KIMOTSUKI ◽  
Mitsuya YASUDA ◽  
Satoshi TAMAHARA ◽  
Naoaki MATSUKI ◽  
Kenichiro ONO
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Topographic Analysis ◽  
Flash Visual Evoked Potentials ◽  
Visual Evoked

Flash visual evoked potentials in conscious horses: a preliminary study

2021 ◽  
pp. 103783
Author(s):  
Mariana Isa Poci Palumbo ◽  
Luiz Antonio de Lima Resende ◽  
Giovane Olivo ◽  
José Paes de Oliveira-Filho ◽  
Alexandre Secorun Borges
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Flash Visual Evoked Potentials ◽  
Preliminary Study ◽  
Visual Evoked

scholarly journals Anxiety affects the amplitudes of red and green color-elicited flash visual evoked potentials in humans

2000 ◽  
Vol 40 (1.2) ◽  
pp. 79-83
Author(s):  
Yuki Hosono ◽  
Kazuyoshi Kitaoka ◽  
Ryo Urushihara ◽  
Hiroyoshi Séi ◽  
Yohsuke Kinouchi
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Green Color ◽  
Flash Visual Evoked Potentials ◽  
Evoked Potentials In Humans ◽  
Visual Evoked

Pattern-reversal visual evoked potentials in patients with hydrocephalus

1985 ◽  
Vol 62 (2) ◽  
pp. 234-237 ◽  
Author(s):  
Shakir M. Alani
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Right Hemisphere ◽  
Visual Pathway ◽  
Pattern Reversal ◽  
Field Stimulation ◽  
Content Type ◽  
Clinical Methods ◽  
The Right ◽  
Visual Evoked

✓ Pattern-reversal visual evoked potentials (VEP's) in response to whole- and half-field stimulation were studied in 10 patients with hydrocephalus. Abnormalities consistent with optic nerve dysfunction were recorded in four patients. Two patients had response asymmetry to half-field stimulation, which suggested dysfunction of the visual pathway in the right hemisphere. The remaining four patients had normal responses. Measurement of VEP's was repeated after the surgical treatment of hydrocephalus in four patients, and showed marked improvement in two of the three patients with preoperative abnormalities. This study suggests that, in patients with hydrocephalus, VEP's are more sensitive than clinical methods in detecting visual pathway dysfunction and that they can be useful in the follow-up monitoring of surgically treated hydrocephalic patients.

P10.1 Paired-pulse flash-visual evoked potentials: new methods revive an old test

2011 ◽  
Vol 122 ◽  
pp. S104
Author(s):  
R. Cantello ◽  
G. Strigaro ◽  
P. Prandi ◽  
M. Mula ◽  
C. Varrasi ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Paired Pulse ◽  
New Methods ◽  
Flash Visual Evoked Potentials ◽  
Visual Evoked

Flash visual evoked potentials and electroretinograms in migraine

2001 ◽  
Vol 25 (3) ◽  
pp. 143-150 ◽  
Author(s):  
Yasar Ozkul ◽  
Bulent Gurler ◽  
Senay Bozlar ◽  
Ayla Uckardes ◽  
Sezin Karadede
Keyword(s):  
Evoked Potentials ◽  
Visual Evoked Potentials ◽  
Flash Visual Evoked Potentials ◽  
Visual Evoked
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