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Leber congenital amaurosis


Other Names for this Disease

  • Congenital absence of the rods and cones
  • Congenital retinal blindness
  • LCA
  • Leber's amaurosis
  • Leber's congenital tapetoretinal degeneration
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Overview

Leber congenital amaurosis is an eye disorder that primarily affects the retina. People with this condition typically have severe visual impairment beginning in infancy. Other features include photophobia, involuntary movements of the eyes (nystagmus), and extreme farsightedness. The pupils also do not react normally to light. Additionally, the the cornea may be cone-shaped and abnormally thin (keratoconus). Franceschetti's oculo-digital sign is characteristic of Leber congenital amaurosis. This sign consists of poking, pressing, and rubbing the eyes with a knuckle or finger. At least 13 types of this condition have been described, which are distinguished by their genetic cause, patterns of vision loss, and related eye abnormalities.[1]
Last updated: 7/24/2012

References

  1. Leber congenital amaurosis. Genetics Home Reference. August 2010; http://ghr.nlm.nih.gov/condition/leber-congenital-amaurosis. Accessed 5/12/2011.
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In Depth Information

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Other Names for this Disease
  • Congenital absence of the rods and cones
  • Congenital retinal blindness
  • LCA
  • Leber's amaurosis
  • Leber's congenital tapetoretinal degeneration
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.