Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Pattern visual evoked potentials in malingering.

A Nakamura1, T Akio, E Matsuda

  • 1Department of Ophthalmology, Kawasaki Medical School, Okayama, Japan.

Journal of Neuro-Ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society
|April 24, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

One of the rubber latex allergens is a lysozyme.

The Journal of allergy and clinical immunology·1995
Same author

Gene expression of keratinocyte and hepatocyte growth factors during the healing of rat gastric mucosal lesions.

Gastroenterology·1995
Same author

[Usefulness of 3-dimensional image analysis of skull base lesions].

No shinkei geka. Neurological surgery·1995
Same author

[Efficacy and complications of topical cocaine anesthesia in functional endoscopic sinus surgery].

Nihon Jibiinkoka Gakkai kaiho·1995
Same author

Purification of an ATP-dependent actin-binding protein from a lower eukaryote, Physarum polycephalum.

Biochemical and biophysical research communications·1995
Same author

[A case of myelodysplastic syndrome who died of septic pulmonary embolism].

Kansenshogaku zasshi. The Journal of the Japanese Association for Infectious Diseases·1995
Same journal

Concurrence of Inherited Nuclear and Mitochondrial DNA Optic Neuropathies.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Aspergillus-Infiltrated Optic Nerve Sheath Meningioma in Immunocompetent Host Mimicking Optic Neuritis.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Progression of Vitreous Detachment Leading to Exacerbation of Visual Field Loss in Acute Nonarteritic Anterior Ischemic Optic Neuropathy.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Characterizing the Role of Ophthalmologists in the Care of Patients With Suspected Giant Cell Arteritis at an Academic Medical Center.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Optic Disc Drusen Is Frequently Not Reported on Computed Tomography Scans Performed for Other Reasons.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Dorsal Midbrain Syndrome Due to Complicated Posterior Reversible Encephalopathy Syndrome.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
See all related articles

This study demonstrates that pattern visual evoked potentials (PVEP) can objectively estimate visual acuity in patients suspected of malingering. The PVEP method proved more accurate than subjective testing for these individuals.

Area of Science:

  • Ophthalmology
  • Neuroscience
  • Visual Science

Background:

  • Malingering, or feigning illness, presents diagnostic challenges in ophthalmology.
  • Objective assessment of visual acuity is crucial when subjective reports are unreliable.

Purpose of the Study:

  • To evaluate the efficacy of pattern visual evoked potentials (PVEP) for objectively determining visual acuity in patients suspected of malingering.
  • To compare PVEP-derived visual acuity with subjective measurements.

Main Methods:

  • Six patients (ages 40-54) with suspected malingering underwent PVEP testing, optokinetic nystagmus (OKN) inhibition tests, and visual field tests.
  • PVEP stimuli included checkerboards of varying sizes (39' to 9') at 8-degree visual angle, 15% contrast, and 0.7 Hz frequency, with 100 averaged responses.

Related Experiment Videos

Main Results:

  • All patients had normal routine ophthalmic examinations.
  • Five patients exhibited tubular visual fields; one had a normal visual field.
  • Objective visual acuities derived from PVEP were consistently better than subjective acuities measured by Landolt rings.

Conclusions:

  • The PVEP method is a valuable tool for objectively assessing visual acuity in cases of suspected ocular malingering.
  • PVEP offers a reliable electrophysiological alternative to subjective psychophysical tests in challenging diagnostic scenarios.