OCCURRENCE OF DISSOCIATED VERTICAL DEVIATION IN HORIZONTAL CONCOMITANT HETEROTROPIA: A HOSPITAL-BASED STUDY

Dissociated Vertical Deviation

DOS Times Vol. 12, No. 3 September, 2006 Dissociated Vertical Deviation (DVD) is one of the least understood forms of strabismus. It was first described by Stevens as double vertical strabismus, other common names given to this anomaly are, Alternating hyperphoria (Crone), Anaphoria / anatropia (Stevens), Periodic vertical squint (Anderson), Strabismus sursoadductorius (Cords). The term "Dissoc...

Facilitation of vertical vergence by horizontal saccades, found in a patient with dissociated vertical deviation.

The authors examined vertical vergence in a 15-year-old girl with dissociated vertical deviation, a 6d` convergent strabismus, no binocular vision, latent nystagmus, and a minimal left amblyopia. Eye movements were recorded during 4s-periods of (1) both eyes open, alternated with 4s-periods of (2a) right eye covered, (2b) left eye covered or (2c) both eyes closed. The patient preferred fixation...

Management of Dissociated Vertical Deviation.

Hypotropic Dissociated Vertical Deviation; a Case Report

PURPOSE To report the clinical features of a rare case of hypotropic dissociated vertical deviation (DVD). CASE REPORT A 25-year-old female was referred with unilateral esotropia, hypotropia and slow variable downward drift in her left eye. She had history of esotropia since she had been 3-4 months of age. Best corrected visual acuity was 20/20 in her right eye and 20/40 in the left one when ...

Dissociated Horizontal Deviation after Traumatic Brain Injury

A 4-year-old boy visited the hospital with exotropia after brain hemorrhage caused by trauma. He had undergone decompressive craniectomy and cranioplasty 18 months prior to presentation at our hospital. An alternate prism cover test showed more than 50 prism diopters (PD) of left exotropia when he was fixing with the right eye and 30 PD of right exotropia when he was fixing with the left eye at...