What causes congenital nystagmus?

Updated: Oct 08, 2019
  • Author: Mark Ventocilla, OD, FAAO; Chief Editor: Edsel Ing, MD, MPH, FRCSC  more...
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Answer

Idiopathic infantile nystagmus is believed to be due to a primary abnormality in oculomotor control. Increasing evidence suggests a genetic mechanism with one gene mapped to the X chromosome and another gene mapped to band 6p12. Hackett et al have found evidence that mutations in the calcium/calmodulin-dependent serine protein kinase (CASK) gene are frequently associated with congenital nystagmus and X-linked mental retardation. [5]


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