telecanthus
Pronunciation: tel-eh-KAN-thus
Abnormal increase in the distance between the medial canthi of the eyes.
Full Definition
Telecanthus refers to an increased intercanthal distance resulting from displacement or injury to the medial canthal tendons, commonly seen following nasoethmoid fractures or congenital conditions. Unlike hypertelorism, which involves increased distance between the bony orbits themselves, telecanthus specifically involves soft tissue displacement while the orbital bones remain in normal position. Normal intercanthal distance averages 30-35mm in adults, and distances exceeding these measurements suggest telecanthus. Surgical correction involves reattachment or reconstruction of the medial canthal tendons to restore proper eyelid positioning and facial symmetry.
Usage
Usage note: Distinguish from hypertelorism, which involves bony orbital separation rather than soft tissue displacement.
In Context
- "Post-traumatic telecanthus was evident with an intercanthal distance of 42mm." — clinical examination notes
- "Surgical correction of telecanthus requires careful reattachment of the medial canthal tendons." — treatment planning documentation