Lateral Canthotomy Procedure Instructions and Supply Checklist



Equipment 

 - Anesthetic 

 - Syringe with 27 gauge needle 

 - Iris scissors (from suture removal kit) 

 - Hemostat 



1) Anesthetize  - Inject anesthetic into the lateral canthus. 

2) Clamp - Clamp the lateral canthus with a hemostat for 1 minute to devascularize. 

3) Canthotomy - Cut the lateral canthus laterally about 1-2 cm. 

4) Identify the Canthal Ligament 

With iris scissors pointed perpendicular to the patient just inside the orbital rim, identify the inferior crus of the canthal ligament. 

5) Cantholysis - Cut the inferior crus. 

6) Recheck Pressure 

Recheck pressure and only if still elevated, Cut the superior crus. Confirm IOP < 40 mmHg. 



#Lateral #Canthotomy #Procedure #Instructions #Ophthalmology #Supplies #Checklist