Comparative study of brain lesions detected by magnetic resonance imaging between strabismus and nonstrabismus in infancy.
OBJECTIVE
To elucidate the causative factors in infantile esotropia, we evaluated morphological abnormalities in brain structures of esotropia patients showing any abnormal neurological signs in comparison to those of normal controls.


METHODS
Sixty-five developmentally normal children participated in this study. Of these 65, 38 demonstrated infantile esotropia and 27 were normal controls. All underwent magnetic resonance imaging (MRI) of the brain between 2 and 30 months.


RESULTS
Abnormal brain findings were noted in 3 (7. 9%) children in the strabismus group, whereas none of the children in the normal control group showed brain lesions. In these 3 cases, brain lesions involved periventricular leukomalacia, enlargement of the lateral ventricles with hypoplasia of the corpus callosum and myelination delay at the anterior horn adjacent to the lateral ventricles.


CONCLUSIONS
Brain lesions that may disturb normal maturation of the visuomotor system and eventually lead to strabismus could be found in some patients without any episode that would cause birth injury.
Ohtsuki
H
H
Department of Ophthalmology, Okayama University Medical School, Okayama, Japan.
Yoshifumi
K
K
Hasebe
S
S
Kono
R
R
Harada
Y
Y
D016080:Arachnoid Cysts / Q000150:complications / Q000175:diagnosis* / Q000453:epidemiology; D001724:Birth Weight; D002552:Cerebral Ventricles / Q000473:pathology*; D002675:Child, Preschool; D003337:Corpus Callosum / Q000473:pathology*; D003937:Diagnosis, Differential; D004948:Esotropia / Q000175:diagnosis* / Q000209:etiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D007969:Leukomalacia, Periventricular / Q000150:complications / Q000175:diagnosis* / Q000453:epidemiology; D008279:Magnetic Resonance Imaging; D008297:Male; D012189:Retrospective Studies