27-Gauge Twinlight Chandelier Illumination System for Bimanual Transconjunctival Vitrectomy

摘要

The needle is inserted for about one fourth of its length transconjunctivally and vertical to the sclera at a site 3 mm posterior to the limbus. It is then carefully retracted to leave only the tip of the needle in the sclerotomy. To prevent elevation of the conjunctiva during retraction of the needle, which would obstruct the view of the trough, the conjunctiva is held down with the tip of the light-probe forceps especially designed for this purpose (Fig. 3). While grasping the light fiber with these forceps, the conical tip is then placed into the trough of the needle and advanced at a 10deg to 20deg angle along the trough into the sclerotomy, while at the same time retracting the needle (Fig. 2). Suture fixation of the fiber to the sclera is not required because the fiber is self-retaining. The second fiber is introduced in the same manner. At conclusion of the vitreous surgery, the light fibers are simply removed.