exorbitism
Pronunciation: eks-OR-bit-izm
Abnormal protrusion of the eyes due to shallow or malformed eye sockets.
Full Definition
Exorbitism refers to the abnormal forward displacement or protrusion of the eyes, typically resulting from shallow, malformed, or underdeveloped orbital cavities. This condition is commonly seen in craniosynostosis syndromes such as Crouzon, Apert, and Pfeiffer syndromes, where premature suture fusion affects orbital development. Exorbitism can lead to exposure keratopathy, corneal drying, visual disturbances, and aesthetic concerns. Treatment may involve orbital advancement procedures, canthopexy, or protective measures depending on severity. The condition differs from exophthalmos, which typically has different underlying causes.
Usage
Usage note: Distinguish from exophthalmos (thyroid-related) and specify underlying cause.
In Context
- "The patient's exorbitism secondary to Crouzon syndrome required bilateral orbital advancement." — Surgical planning note
- "Corneal exposure from severe exorbitism necessitated immediate protective measures." — Ophthalmology consultation