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Purely horizontal strabismus associated with head tilt.

07:00 EST 27th December 2017 | BioPortfolio

Summary of "Purely horizontal strabismus associated with head tilt."

We present the first case of an otherwise healthy child with a marked left head tilt used to improve a purely horizontal, nonaccommodative deviation. A patching test confirmed strabismus as the etiology of the abnormal head position. The head tilt was dramatically reduced following bilateral medial rectus recession.

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Journal Details

This article was published in the following journal.

Name: Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus
ISSN: 1528-3933
Pages:

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Medical and Biotech [MESH] Definitions

Posture while lying with the head lower than the rest of the body. Extended time in this position is associated with temporary physiologic disturbances.

Misalignment of the visual axes of the eyes. In comitant strabismus the degree of ocular misalignment does not vary with the direction of gaze. In noncomitant strabismus the degree of misalignment varies depending on direction of gaze or which eye is fixating on the target. (Miller, Walsh & Hoyt's Clinical Neuro-Ophthalmology, 4th ed, p641)

NEURONS in the inner nuclear layer of the RETINA that synapse with both the RETINAL PHOTORECEPTOR CELLS and the RETINAL BIPOLAR CELLS, as well as other horizontal cells. The horizontal cells modulate the sensory signal.

Diseases of the fourth cranial (trochlear) nerve or its nucleus in the midbrain. The nerve crosses as it exits the midbrain dorsally and may be injured along its course through the intracranial space, cavernous sinus, superior orbital fissure, or orbit. Clinical manifestations include weakness of the superior oblique muscle which causes vertical DIPLOPIA that is maximal when the affected eye is adducted and directed inferiorly. Head tilt may be seen as a compensatory mechanism for diplopia and rotation of the visual axis. Common etiologies include CRANIOCEREBRAL TRAUMA and INFRATENTORIAL NEOPLASMS.

The naturally occurring transmission of genetic information between organisms, related or unrelated, circumventing parent-to-offspring transmission. Horizontal gene transfer may occur via a variety of naturally occurring processes such as GENETIC CONJUGATION; GENETIC TRANSDUCTION; and TRANSFECTION. It may result in a change of the recipient organism's genetic composition (TRANSFORMATION, GENETIC).

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