Prominent limbal ringLight brown iris with a distinct limbal ring
A limbal ring is a dark ring around the iris of the eye, where the sclera meets the cornea.[1] It is a dark-colored manifestation of the corneal limbus resulting from optical properties of the region.[2] The appearance and visibility of the limbal ring can be negatively affected by a variety of medical conditions concerning the peripheral cornea.[3] It has been suggested that limbal ring thickness may correlate with health or youthfulness and may contribute to facial attractiveness.[3][4] The thickness of the limbal ring varies by pupil dilation - when the pupil is larger, the limbal ring narrows.[5] Some contact lenses are colored to simulate limbal rings.[1]
^ abJohnson and Johnson Vision Care Inc. Tinted contact lenses with combined limbal ring and iris patterns. US7246903B2. United States Patent and Trademark Office, July 24, 2007.
^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. S2CID 39174174.
^ abPeshek D, Semmaknejad N, Hoffman D, Foley P (2011). "Preliminary evidence that the limbal ring influences facial attractiveness" (PDF). Evolutionary Psychology. 9 (2): 137–146. doi:10.1177/147470491100900201. PMID 22947961.
^Brown M, Sacco DF (2018). "Put a (Limbal) Ring on It: Women Perceive Men's Limbal Rings as a Health Cue in Short-Term Mating Domains". Pers Soc Psychol Bull. 44 (1): 80–91. doi:10.1177/0146167217733072. PMID 28978250.
^Shyu, Betsy P.; Wyatt, Harry J. (September 2009). "Appearance of the Human Eye: Optical Contributions to the "Limbal Ring"". Optometry and Vision Science. 86 (9): E1069–E1077. doi:10.1097/OPX.0b013e3181b4f010. ISSN 1040-5488.
A limbalring is a dark ring around the iris of the eye, where the sclera meets the cornea. It is a dark-colored manifestation of the corneal limbus resulting...
PMID 22947961. Brown M, Sacco DF (2018). "Put a (Limbal) Ring on It: Women Perceive Men's LimbalRings as a Health Cue in Short-Term Mating Domains". Pers...
conditions with similar appearance, but differing in color are limbalring, and Kayser–Fleischer ring. In the elderly, arcus senilis is a benign condition that...
birds Periorbital dark circles, dark blemishes around the eyes. Limbalring, a dark ring around the iris of the eye, where the sclera meets the cornea....
the lens. The result is the appearance of a bigger, wider iris with a limbalring, creating an illusion of large eyes. The optical zone in the middle is...
significant role in human nonverbal communication. A prominent limbalring (dark ring around the iris of the eye) is considered attractive. Additionally...
either the fingernails or toenails, an abnormal gait, and a limbalring a darkened ring around the iris of the eye.[citation needed] A sign is different...
Periorbital dark circles Periorbital puffiness The term may also refer to the limbalrings around the iris. This disambiguation page lists articles associated with...
man whose iris ("bübäčik") was black, cornea white ("aq"), and whose limbalring was red. The Borjigin family ruled over the Mongol Empire from the 13th...
with thick, dark limbalrings in their eyes have also been found to be more attractive. The explanation given is that because the ring tends to fade with...
limbal stem cells in its palisades of Vogt. It may be affected by cancer or aniridia (a developmental problem), among other issues. The PS , RV ring is...
due to a constriction ring around mostly a limb. ADAM complex is the association of limb defects (caused by constriction rings) and certain craniofacial...
terms arms versus tentacles. The numerous limbs of nautiluses are called tentacles. The ring of eight limbs around the mouth in cuttlefish, squids and...
elastic ring made of silicone, stockinet, and pull straps made from ribbon that are used to roll the device onto the limb. The silicone ring tourniquet...
Ring Shout, or, Hunting Ku Kluxes in the End Times is a dark historical southern gothic fantasy novella written by American fiction writer P. Djèlí Clark...
A swim ring (also known as a swimming ring, swim tube, rubber ring, water donut, floatie, inner tube, or, in the United States, a lifesaver) is a toroid-shaped...
apparatus allows the damaged limb to bear weight early in the medical treatment. Once emplaced onto the limb, the top rings of the apparatus transfer mechanical...
Kula exchange or Kula ring, is a ceremonial exchange system conducted in the Milne Bay Province of Papua New Guinea. The Kula ring was made famous by Bronisław...
IUCN Red List. The species is known by variety of different names, such as ring-tailed cat, miner's cat, civet cat, and cacomistle (or cacomixtle), though...
removal of a limb by trauma, medical illness, or surgery. As a surgical measure, it is used to control pain or a disease process in the affected limb, such as...
noted for his oversized limbs. In 2022, his forearm measured a girth of 20 inches and his ring finger of 5 inches. His limb size is not a consequence...
Girdling, also called ring-barking, is the circumferential removal or injury of the bark (consisting of cork cambium or "phellogen", phloem, cambium and...
The scleral ring is a hardened ring composed of multiple often bone-derived plates found in the eyes of many animals across several groups of vertebrates...
Global Information
