CONGENITAL NYSTAGMUS PLUS INTERMITTENT EXOTROPIA, SUPPRESSION OF NYSTAGMUS BY FUSIONAL CONVERGENCE

We report on a patient with a combination of congentital nystagmus and intermittent exotropia. When the exotropia became manifest, a gross nystagmus appeared. When, however, the exotropia was overcome by fusinal convergence, the nystagmus was largely suppressed. The angle of squint was surgically reduced by such an amount that the exodeviation was just compensated, and the fusional convergence required to overcome the remaining angle sufficed to suppress the nystagmus.