Open AccessSynergistic convergence and split pons in horizontal gaze palsy and progressive scoliosis in two sisters
Author(s) -
Nitin Jain,
Jitendra Jethani,
Kalparendran,
L Kanth
Publication year - 2011
Publication title -
indian journal of ophthalmology/indian journal of ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.542
H-Index - 51
eISSN - 1998-3689
pISSN - 0301-4738
DOI - 10.4103/0301-4738.77012
Subject(s) - medicine , pons , magnetic resonance imaging , palsy , scoliosis , anatomy , ocular motility disorders , kyphoscoliosis , dysplasia , gaze , eye movement , ophthalmology , surgery , radiology , pathology , psychology , alternative medicine , psychoanalysis
Synergistic convergence is an ocular motor anomaly where on attempted abduction or on attempted horizontal gaze, both the eyes converge. It has been related to peripheral causes such as congenital fibrosis of extraocular muscles (CFEOM), congenital cranial dysinnervation syndrome, ocular misinnervation or rarely central causes like horizontal gaze palsy with progressive scoliosis, brain stem dysplasia. We hereby report the occurrence of synergistic convergence in two sisters. Both of them also had kyphoscoliosis. Magnetic resonance imaging (MRI) brain and spine in both the patients showed signs of brain stem dysplasia (split pons sign) differing in degree (younger sister had more marked changes).