... 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 ... described. These approaches vary in the relationship of the orbital septum to the path of dissection (Fig. 3 -1 ). The retroseptal approach is more direct than the preseptal approach and easier to perform. ... through the tendon. The surgeon should pull on the two ends of the suture to enclosure that the suture is firmly attached to ligamentous tissue. The suture is then tied,with the lower lid drawn into...