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Congenital nystagmus is an eye movement disorder in which one or both eyes are in constant movement. It can be associated with a number of ocular or neurological diseases, or it can be inherited in an autosomal or X-linked fashion. The latter form is called idiopathic or motor nystagmus (CIN). Loci on the X chromosome (NYS1) and on 6p12 (NYS2), 7p11.2 (NYS3), and 13q31-q33 (NYS4) have been identified for CIN. The molecular characterization of NYS1 has recently been solved by Tarpey et al., who identified mutations in FRMD7, a gene of unclear function. We report five novel mutations in FRMD7 and confirm the role of this gene in the pathogenesis of X-linked congenital nystagmus.

The surgical method used for strabismus correction in children has a great influence on the incidence of postoperative vomiting. The Faden operation is associated with a very high incidence of postoperative vomiting; this particular group of patients has to be considered as a high risk group for postoperative vomiting and deserves an antiemetic prophylaxis.

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