True microcephaly has been shown to be an autosomal recessive trait. 1 Despite mental
retardation, general health and neurologic function of the affected children are usually not
impaired, except for smaller size than unaffected sibs and generalized hypertonus. The
affected persons are not demented. The present report concerns eight cases of
microcephaly observed in two sibships of an inbred group. In addition to the usual features
of microcephaly, ocular abnormalities were observed in all and probably result from the …