Exotropia and face turn in children with homonymous hemianopia.
Four children developed homonymous hemianopia, exotropia with the deviating eye pointing in the direction of the field defect, and a face turn toward the side of the defect following complete third cranial nerve palsy after brain tumor resection, an in utero middle cerebral artery infarction, nonaccidental head trauma, and a hemispherectomy for an intractable seizure disorder. We present evidence that the exotropia and face turn are part of an adaptive mechanism to increase the useful visual field.
Donahue
Sean P
SP
Department of Ophthalmology and Visual Sciences, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-8808, USA. sean.donahue@vanderbilt.edu
Haun
Alden K
AK
D001932:Brain Neoplasms / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D005099:Exotropia / Q000503:physiopathology*; D005145:Face; D005260:Female; D006423:Hemianopsia / Q000209:etiology / Q000503:physiopathology*; D006801:Humans; D007223:Infant; D008297:Male; D011183:Postoperative Complications; D014794:Visual Fields / Q000502:physiology