What is canthotomy definition?

Canthotomy is a surgical procedure that involves making an incision through the outer corner of the eyelid (canthus) to relieve pressure on the eye caused by severe swelling or bleeding. It is usually performed in emergency situations when there is a risk of vision loss due to increased pressure in the eye. The procedure is often done in conjunction with cantholysis, which involves cutting or releasing the lower eyelid from the eye socket to allow for better drainage of fluids and pressure. Canthotomy is typically performed under local anesthesia and is considered a relatively safe and effective procedure with a low risk of complications.