Ocular Malingering

Ocular malingering: a surprising visual acuity test.

OBJECTIVE To describe a visual acuity test for use in identifying psychogenic visual impairment and malingering. METHODS The test contained 32 white plates with a black Landolt C printed in the center. The sequence of the 4 alternative directions of the C was not predictable. After plate 21, 4 circles were interspersed among the remaining plates. The test is administered at a distance from wh...

Assessment of visual function in suspected ocular malingering.

Three new techniques are presented for assessing visual acuity in the presence of suspected malingering. The first technique is based on the preferential looking method commonly used to test acuity in infants. The second uses polarising filters to present stimuli briefly to both eyes or to each eye alone, without the patient's being aware of which eye is tested. The third presents the stimuli o...

Pattern-reversal visual evoked potentials as a diagnostic tool for ocular malingering.

Purpose: To investigate the contributions of transient pattern-reversal visual evoked potentials in the diagnosis of ocular malingering at a Brazilian university hospital. Methods: Adult patients with suspected malingering in one or both eyes were referred for visual evoked potential testing. Data from patients' medical records were reviewed and analyzed retrospectively. Data analysis include...

Malingering Among Criminals

Malingering Using Classification Test

A category classification test was used to differentiate between normal student eontrol participant.~. students instructed to malinger a memory deficit, and amnesic" patients. Controls (N = 44) and amnesic patients (N = 10) were instructed to do their best, while simulators of malingering (N = 43) were instructed to fake a memory deficit for credit and possible financial compensation. Partieipa...