Canthus
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(Redirected from Canthorum)
For other uses, see Canthus (disambiguation).
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| Front of left eye with eyelids separated to show medial canthus. |
Canthus (pl. canthi, palpebral commissures) is either corner of the eye where the upper and lower eyelids meet.[1] More specifically, the medial and lateral canthi would be described as 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.
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[edit] 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.
[edit] 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).
[edit] Pathology
"Dystopia canthorum" is associated with Waardenburg syndrome.[2]
[edit] See also
[edit] References
[edit] External links
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