[Facial asymmetry, asymmetry of muscle tonus and unilateral amblyopia].

The authors noted the high prevalence of facial asymmetry and of unilateral amblyopia in some hundred children suffering from chronic neurological conditions. Unilateral changes in muscle tone are responsible for such asymmetry. Amblyopia in itself may cause a facial asymmetry. The dental arcades are little affected even by severe deformities of their underlying bony supports. Dento-maxillary abnormalities are no more severe in these children than in a normal population.