canthal dystopia
Pronunciation: KAN-thal dis-TOH-pee-ah
Abnormal positioning of the inner or outer corner of the eyelid.
Full Definition
Canthal dystopia refers to the abnormal positioning of the medial or lateral canthal angles of the eyelids, resulting in asymmetry or functional problems. This condition can be congenital or acquired following trauma, surgery, or aging. In craniofacial surgery contexts, canthal dystopia often occurs secondary to orbital fractures, particularly naso-orbito-ethmoid (NOE) injuries, or following extensive facial reconstruction. The condition can affect both appearance and function, potentially causing epiphora (excessive tearing), ectropion, or aesthetic deformity. Treatment typically involves surgical repositioning through canthopexy or canthoplasty procedures.
Usage
Usage note: Specify medial vs. lateral; often associated with NOE injuries or syndromic conditions.
In Context
- "The NOE fracture resulted in significant medial canthal dystopia requiring reconstruction." — Trauma assessment
- "Bilateral canthal dystopia was corrected during the secondary craniofacial reconstruction." — Revision surgery note