Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Lateral Canthotomy and Cantholysis
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Lateral canthotomy and cantholysis is a surgical procedure most commonly used for the emergency treatment of orbital compartment syndrome, which is an emergency condition characterized by increased pressure within the orbit of the eye due to any cause. Immediate treatment is required to preserve vision. With lateral canthotomy and cantholysis, the lateral canthal tendons that attach the eyelids to the orbital rim are cut so that the pressure within the orbit can be released. This procedure is also performed on the medial canthal tendons (medial canthotomy and cantholysis).