Fleischer ring

Fleischer rings are pigmented rings in the peripheral cornea, resulting from iron deposition[1] in basal epithelial cells, in the form of hemosiderin.[2] They are usually yellowish to dark-brown, and may be complete or broken.

They are named for Bruno Fleischer.[3]

Fleischer rings are indicative of keratoconus,[4] a degenerative corneal condition that causes the cornea to thin and change to a conic shape.

Confusion with Kayser-Fleischer rings

Some confusion exists between Fleischer rings and Kayser-Fleischer rings. Kayser-Fleischer rings are caused by copper deposits in descemet's membrane of cornea , and are indicative of Wilson's disease, whereas Fleischer rings are caused by iron deposits in basal epithelial cells. One example of a medical condition that can present with Fleischer rings is Keratoconus.

See also

Other iron lines:

References

  1. ↑ "Cornea & External Diseases-Keratoconus Fleischer's Ring". Retrieved 2008-10-24.
  2. ↑ "Definition: Fleischer's ring from Online Medical Dictionary". Retrieved 2008-10-24.
  3. ↑ Fleischer, B (1906). "Über Keratokonus und eigenartige Pigmentbildung in der Kornea". Münchener medizinische Wochenschrift. 53: 625&ndash, 626.
  4. ↑ Hiratsuka Y, Nakayasu K, Kanai A (2000). "Secondary keratoconus with corneal epithelial iron ring similar to Fleischer's ring". Japanese Journal of Ophthalmology. 44 (4): 381–6. doi:10.1016/S0021-5155(00)00179-9. PMID 10974294.


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