Canthus
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| Identifiers | |
| Dorlands /Elsevier |
c_05/12210029 |
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| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology
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Canthus (pl. canthi, palpebral commissures) is either corner of the eye where the upper and lower eyelids meet.[1] More specifically, the inner and outer canthi are, respectively, the medial and lateral ends/angles of the palpebral fissure.
The bicanthal plane is the transversal plane linking both canthi and defines the upper boundary of the midface.
Commissures
- The lateral palpebral commissure (commissura palpebrarum lateralis; external canthus) is more acute than the medial, and the eyelids here lie in close contact with the bulb of the eye.
- The medial palpebral commissure (commissura palpebrarum medialis; internal canthus) is prolonged for a short distance toward the nose, and the two eyelids are separated by a triangular space, the lacus lacrimalis.
Surgery
Canthoplasty refers to a plastic surgery of the medial and/or lateral canthus.
A canthotomy involves cutting the canthus, often performed to release excessive orbital pressure (i.e., from orbital hemorrhage or infection).
Pathology
"Dystopia canthorum" is a lateral displacement of the inner canthi of the eyes, giving an appearance of a widened nasal bridge.[2] Dystopia canthorum is associated with Waardenburg syndrome.[3]
See also
References
- ↑ "canthus" at Dorland's Medical Dictionary
- ↑ Genetic Hearing Loss from UTMB, Dept. of Otolaryngology. DATE: March 17, 2004. RESIDENT PHYSICIAN: Jing Shen. FACULTY PHYSICIAN: Ronald W. Deskin, MD. SERIES EDITORS: Francis B. Quinn, Jr., MD and Matthew W. Ryan, MD.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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