Limbal ring

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Not to be confused with Kayser–Fleischer ring or Fleischer ring.
A human eye with prominent limbal ring

A limbal ring is a dark ring around the iris of the eye. It is a dark-colored manifestation of the corneal limbus resulting from optical properties of the region.[1]

Limbal rings become less pronounced with age, thus darker rings imply youthfulness and are considered attractive.[2] Some contact lenses are colored to simulate limbal rings.

References[edit]

  1. ^ Shyu, Betsy P.; Wyatt, Harry J. (2009). "Appearance of the Human Eye: Optical Contributions to the 'Limbal Ring'". Optometry and Vision Science 86 (9): E1069–77. doi:10.1097/OPX.0b013e3181b4f010. PMID 19648842. 
  2. ^ Peshek, Semmaknejad, Hoffman, Foley (2011). "Preliminary evidence that the limbal ring influences facial attractiveness". Evolutionary Psychology 9 (2): 137–146.