Document Detail

An unusual case of congenital convergent convergent strabismus fixus.
MedLine Citation:
PMID:  16042538     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Convergent strabismus fixus is classified into congenital and acquired types; however, there are only a few detailed case reports of congenital convergent strabismus fixus. Here, we report a rare case of this condition in which the eyeball was shown by imaging diagnosis to be fixed with a hard cord-like material in the orbit. To our knowledge, there have been no previous reports of congenital convergent strabismus fixus caused by an abnormal cord-like material that was clearly identifiable by imaging. CASE REPORT: The patient was a 16 year old female who visited our department for consultation regarding restoration of normal appearance of her strabismus. She had undergone strabismus surgery at the age of 3 years, but a forced duction test was strongly positive in all directions, and the eyeball was not mobile at the time. The initial surgery performed was a tenotomy of the medial rectus muscle and inferior rectus muscle and resection of the lateral rectus muscle of the right eye. The eye position and eye movement remained unchanged after surgery. At this time, MRI of the orbital region was performed, and an abnormal cord-like material connecting the posterior eyeball to the orbital wall was detected in the orbit. The cord-like material was pulling strongly on the posterior eyeball, congenitally fixing the eye position internally. CONCLUSION: We experienced a rare case in which a hard cord-like material in the orbit congenitally fixed the position of the eyeball. On MRI, the intensity of the cord-like material was clearly different from those of the muscle and nerve tissues. Considering the linearity of the cord-like material and the results of a forced duction test, the cord-like material probably consisted of fairly hard tissue, similar to bone.
Masahiro Oba; Keiichi Ogawa; Hajime Osanai; Kenji Ohtsuka
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Binocular vision & strabismus quarterly     Volume:  20     ISSN:  1088-6281     ISO Abbreviation:  Binocul Vis Strabismus Q     Publication Date:  2005  
Date Detail:
Created Date:  2005-07-26     Completed Date:  2005-09-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9607281     Medline TA:  Binocul Vis Strabismus Q     Country:  United States    
Other Details:
Languages:  eng     Pagination:  89-92     Citation Subset:  IM    
Department of Opthamology, Sapporo Medical University School of Medicine, Japan.
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MeSH Terms
Eye Abnormalities / diagnosis*
Eye Movements
Magnetic Resonance Imaging
Oculomotor Muscles / pathology
Orbit / abnormalities*,  pathology
Strabismus / congenital*,  diagnosis*
Vision, Binocular

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