... through the superior limb of the lateral canthaltendon. The bulk of the lateral canthal tendon attaches to the orbital tubercle, 3 to 4 mm posterior to the orbital margin. Following canthotomy, the ... superior limb of the tendon. An effectivemethod to pass this suture is to identify the superior limb of the canthal tendon first with small,toothed forceps placed into the incision. The forceps are ... retractors, a scalpel is used to icise the periorbita, taking care to stay lateral to the lacrimal sac (Fig. 3-1 1). The incision through the periorbita is just posterior to the orbital rim when the...