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Limbal ring

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Not to be confused with Kayser–Fleischer ring or Fleischer ring.
Blue eye with clearly visible limbal ring. Subject: 18 year old Caucasian female
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.

See also

References

  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. ^ "Preliminary evidence that the limbal ring influences facial attractiveness". Evolutionary Psychology. 9 (2): 137–146. 2011. {{cite journal}}: Unknown parameter |authors= ignored (help)
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