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Canthus

Canthus
Gray892.png
Front of left eye with eyelids separated to show medial canthus.
Dorlands
/Elsevier
c_05/12210029
Anatomical terminology
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Canthus (pl. canthi, palpebral commissures) is either corner of the eye where the upper and lower eyelids meet. 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.

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).

Dystopia canthorum is a lateral displacement of the inner canthi of the eyes, giving an appearance of a widened nasal bridge. It is associated with Waardenburg syndrome.



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