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At least 361 records · Page 20Linked to original sources
PubMed1978

Interocular transfer of a visual aftereffect in early-onset esotropia.

The interocular transfer of the tilt aftereffect was studied in strabismic patients with early-onset esotropia and in controls. Squinting subjects were divided into a microtropia subgroup with anomalous binocular vision and a large-angle esotropia subgroup with total suppression of the deviated eye. Patients with alternating microtropia and large-angle esotropia showed normal or moderately reduced interocular transfer of the aftereffect. Patients with monocular microtropia with medium- or low-degree amblyopia showed a reduced monocular visual aftereffect in the dominant eye and practically no transfer to the nondominant eye. Adaptation of the nondominant eye and transfer of the aftereffect to the dominant eye was normal. The interocular transfer of the tilt aftereffect is a poor indicator of the state of binocularity of a squinting subject, and the clinical usefulness of this test is limited.

Adolescent↗
PubMed1980

Anomalous retinal correspondence. Monocular and binocular visual evoked responses.

Monocular and binocular flashed visual evoked responses (VERs) were recorded in two normal subjects, two patients with partially accommodative refractive small-angle esotropia, and two patients with residual small-angle esotropia. Without optical correction the binocular VER of the patients with partially accommodative esotropia was equal to the monocular one, thus confirming suppression of the deviated eye as found with the striated glasses test. In the two patients with residual small-angle deviation and in the two with partially accomodative strabismus wearing an optical correction to reduce the angle of deviation, the binocular VER was larger than the monocular one. These patients showed anomalous retinal correspondence (ARC). Although the binocular recording of strabismic patients was smaller than the one obtained in normal subjects, still a cortical binocular interaction was found. In the subjects tested, ARC is objectively demonstrated to sustain an anomalous type of binocular vision.

Adolescent↗
PubMed1990

Trazodone-induced palinopsia.

Palinopsia refers to the persistence or reappearance of an image of a recently viewed object. Typically, patients with palinopsia have other visual symptoms or signs, and the underlying cause is a structural lesion of the posterior portions of the cerebral hemispheres. However, we treated three patients who experienced palinopsia as an isolated symptom, apparently as a side effect of trazodone hydrochloride therapy for depression. The palinopsia was dose related and disappeared with reduction or cessation of therapy.

Adult↗
PubMed1984

The accuracy of fixation in lateral gaze and the problem of retinal slip.

The mean accuracy of foveal fixation in lateral gaze was measured by means of an after-image method used previously in the study of autokinesis. During physiological excursions of gaze a lag between target image and foveal image could not be demonstrated. It must be smaller than 1/1000 of the excursion. Thus there is a striking difference between the mechanism of voluntary gaze on the one hand and the mechanism of vergence on the other hand. During sustained divergence the eyes lag almost 1/10 in respect to the required vergence.

Afterimage↗